WO1999000205A1 - Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage - Google Patents
Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage Download PDFInfo
- Publication number
- WO1999000205A1 WO1999000205A1 PCT/CH1998/000261 CH9800261W WO9900205A1 WO 1999000205 A1 WO1999000205 A1 WO 1999000205A1 CH 9800261 W CH9800261 W CH 9800261W WO 9900205 A1 WO9900205 A1 WO 9900205A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- casting
- ladle
- casting machine
- teeming
- carriage
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Ceased
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D41/00—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like
- B22D41/04—Casting melt-holding vessels, e.g. ladles, tundishes, cups or the like tiltable
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B22—CASTING; POWDER METALLURGY
- B22D—CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES
- B22D39/00—Equipment for supplying molten metal in rations
Definitions
- the present invention relates to a method for controlling the movement of a ladle according to the preamble of claim 1 and a casting machine for carrying out the method according to the preamble of claim 4
- a casting method has become known from EP-PS 592 365, in which the casting ladle after the first dessing process, while maintaining a certain safety distance between the pan body and the molding box, with the aid of a stationary tilting axis, can be moved further towards the center of the mold.
- the fixed tilting axis with the lifting drive is attached to the front of the pouring spout, and since the tilting bearing required on the tilting axis must also be at a safety distance above the molding box or the weighting iron, this also leads to a high pouring height in terms of design.
- a high pouring height entails significant disadvantages: since more kinetic energy has to be destroyed, a deeper pouring funnel is necessary so that the top box is not optimally used.
- the invention now has as its object to avoid all the disadvantages mentioned and to provide a method and a casting machine for controlling the movement of a ladle, with which it is always possible to pour with a low pouring height, even if the pouring funnels are arranged at any point in the molding box and at which the theoretical snout pivot point is constantly brought into the lowest possible position.
- This object is now achieved by the method and the casting machine, which have the characterizing features of patent claims 1 and 4.
- Advantageous embodiments of the subject matter of the invention are listed in the dependent claims 2, 3 and 5 to 9.
- FIG. 1 is a plan view of the casting machine shown in FIG. 1,
- Fig. 3 is a view of the ladle in the pouring position
- Fig. 4 sketchy a detail of the ladle suspension.
- the casting machine 1 on wheels 2 of a longitudinal carriage 3 on rails 4 can be moved horizontally in the Y direction parallel to a casting mold path indicated by 5.
- the longitudinal carriage 3 carries a transverse carriage 6 which can be displaced in the X direction by means of rail guides 7 transversely to that by means of a friction motor 8.
- a holding device 13 for the ladle 14 is arranged such that it can be raised and lowered in the vertical direction Z.
- the holding device 13 is suspended from chains 15, which is displaced via chain wheels 17 driven by a lifting motor 16.
- the tilting shaft 18 pivots a projecting suspension plate 20, in which the ladle 14 is fastened so that it can be suspended.
- the longitudinal carriage 3 with the casting ladle 14 filled with molten metal is moved in the Y direction until the pouring spout 21 at the level of the pouring funnel 22 is opposed to the casting mold 24 loaded with weighting iron 23, which is due to the electronic Control device 11 is effected.
- the electronic control device 11 has previously been programmed in accordance with the dimensions of the casting molds to be cast. According to this program to be called up, the friction motor 8, the lifting motor 16 and the tilt motor 19 are now controlled in such a way that the theoretical snout pivot point D with the radius R of the snout stone 25 moves from top to bottom on the curve K1, which is always the case while maintaining a safety distance corresponds to the lowest possible pouring height.
- the point of application K of the tilting moment on the curve K2 transmitted by the tilting shaft 18 via the suspension plate 20 to the pouring ladle 14 must move accordingly from bottom to top, which is done by correspondingly controlling the motors mentioned.
- the casting process can be automatically stopped by the control device 11 depending on the cast melt weight and can be resumed in the following mold.
- the electronic control device is programmed so that the lifting and lowering of the pouring spout is carried out at high speed during the pouring pause, which is to be kept as short as possible.
- several molds can be filled until the curves K1 and K2 are run through and the ladle is thus emptied.
- the casting machine has to drive to a loading and unloading station, where the empty ladle is replaced by a full one. After this, the casting process can be resumed after the drive back.
- two casting machines can be arranged next to one another, so that if the casting ladle of the first casting machine is empty, the second one continues the casting process immediately, while the first replaces the empty casting ladle with a full one.
- This method is that the loading and unloading station can be reached in both directions of the rails 4.
- the ladle 14 lies on the bottom with a rounded projection 31 on a projecting part 32 of the suspension plate 20.
- This pouring ladle suspension has numerous advantages: the casting machine can be made smaller, the accessibility between the pouring ladle and the casting mold is improved, only a vertical drive in the Z direction and a tilting drive around the axis A are required, and a rotating drive is required for changing the ladle enables this to be greatly accelerated and pans of different sizes can be used.
- the snout 21 of the ladle 14 is equipped with an interchangeable snout stone 25.
- the stone can be kept smaller and cheaper, it can be replaced quickly and easily when changing pans, and refractory material is saved.
- the exact insertion of the snout stone is effected by a holder attached in the snout, so that the radius R of the snout stone moves exactly around the theoretical snout pivot point D, which prevents a pouring jet migration during the entire tipping process.
- a specially shaped slag stone 33 is used in the vicinity of the snout 21 to hold back the slag, to break the waves and to destroy the kinetic energy generated in the pan by the tipping.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Casting Support Devices, Ladles, And Melt Control Thereby (AREA)
- Furnace Housings, Linings, Walls, And Ceilings (AREA)
- Casting Devices For Molds (AREA)
- Induction Machinery (AREA)
- Refinement Of Pig-Iron, Manufacture Of Cast Iron, And Steel Manufacture Other Than In Revolving Furnaces (AREA)
Abstract
Description
Claims
Priority Applications (9)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AT98923971T ATE200639T1 (de) | 1997-06-27 | 1998-06-17 | Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage |
| CA002292650A CA2292650C (en) | 1997-06-27 | 1998-06-17 | A method and device for the movement control of a teeming ladle with a low teeming height in a teeming installation |
| DK98923971T DK0996517T3 (da) | 1997-06-27 | 1998-06-17 | Fremgangsmåde og anordning til bevægelsesstyring af en støbepande med ringe støbehøjde i et støbeanlæg |
| BR9810940-5A BR9810940A (pt) | 1997-06-27 | 1998-06-17 | Processo e dispositivo para comandar o movimento de uma panela de fundição com pequena altura de fundição numa fundição. |
| DE59800642T DE59800642C5 (de) | 1997-06-27 | 1998-06-17 | Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage |
| JP50518299A JP3329834B2 (ja) | 1997-06-27 | 1998-06-17 | 鋳造設備における僅かな鋳込み高さを備えたとりべの運動制御のための方法及びその装置 |
| US09/446,538 US6619371B1 (en) | 1997-06-27 | 1998-06-17 | Method and device for controlling the movement of the teeming ladle having a low teeming height in a teeming installation device |
| AU76350/98A AU7635098A (en) | 1997-06-27 | 1998-06-17 | Method and device for controlling the movement of a teeming ladle having a low teeming height in a teeming installation |
| EP98923971A EP0996517B1 (de) | 1997-06-27 | 1998-06-17 | Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH155497 | 1997-06-27 | ||
| CH1554/97 | 1997-06-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1999000205A1 true WO1999000205A1 (de) | 1999-01-07 |
Family
ID=4213137
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CH1998/000261 Ceased WO1999000205A1 (de) | 1997-06-27 | 1998-06-17 | Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage |
Country Status (14)
| Country | Link |
|---|---|
| US (1) | US6619371B1 (de) |
| EP (1) | EP0996517B1 (de) |
| JP (1) | JP3329834B2 (de) |
| KR (1) | KR100369645B1 (de) |
| CN (1) | CN1080154C (de) |
| AT (1) | ATE200639T1 (de) |
| AU (1) | AU7635098A (de) |
| BR (1) | BR9810940A (de) |
| CA (1) | CA2292650C (de) |
| DE (1) | DE59800642C5 (de) |
| DK (1) | DK0996517T3 (de) |
| ES (1) | ES2158683T3 (de) |
| PT (1) | PT996517E (de) |
| WO (1) | WO1999000205A1 (de) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004110683A1 (de) * | 2003-06-13 | 2004-12-23 | Künkel-Wagner SLS Swisspour AG | Giessroboter mit einer wägezelle |
| RU2311259C1 (ru) * | 2006-05-11 | 2007-11-27 | Государственное образовательное учреждение высшего профессионального образования "Уральский государственный технический университет-УПИ" | Устройство для плавления и дозирования легкоплавких металлов |
| WO2008099556A1 (en) * | 2007-02-15 | 2008-08-21 | Sintokogio, Ltd. | Automatic pouring method and device |
| WO2010128610A1 (en) * | 2009-05-08 | 2010-11-11 | Sintokogio, Ltd. | Carriage to transport a ladle and to transfer molten metal into equipment for pouring and transportation line for transporting molten metal |
Families Citing this family (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004018131A1 (es) * | 2002-08-20 | 2004-03-04 | Loramendi, S.A. | Cuchara de colada |
| JP4858861B2 (ja) * | 2008-03-25 | 2012-01-18 | 新東工業株式会社 | 自動注湯機の制御方法およびその制御システム |
| JP2011167695A (ja) * | 2010-02-16 | 2011-09-01 | Sintokogio Ltd | 取鍋交換型自動注湯装置 |
| CN102009157B (zh) * | 2010-11-29 | 2012-12-26 | 苏州中门子科技有限公司 | 铜铝复合排浇铸系统中的浇铸机 |
| WO2012088580A1 (en) | 2010-12-29 | 2012-07-05 | Imac Inc. | Die casting machine and method |
| JP5492129B2 (ja) * | 2011-03-29 | 2014-05-14 | アイシン高丘株式会社 | 鋳鋼注湯装置 |
| JP5886686B2 (ja) * | 2012-05-25 | 2016-03-16 | 東久株式会社 | 自動注湯装置並びに鋳型に対する注湯方法 |
| DE102015107951B4 (de) | 2015-05-20 | 2018-09-13 | INDUGA Industrieöfen u. Giesserei-Anlagen GmbH & Co. KG | Verfahren und Vorrichtung einer Regelung des Gießprozesses beim Abgießen einer Gießform mittels einer schwerkraftentleerten drehbaren Gießpfanne |
| CN110695348A (zh) * | 2019-12-03 | 2020-01-17 | 邳州市政隆建设有限公司 | 一种多功能铸造机 |
| CN111215611B (zh) * | 2020-02-21 | 2021-06-15 | 太原科技大学 | 一种消失模铸造自动浇注系统 |
| CN111318678A (zh) * | 2020-04-07 | 2020-06-23 | 山东杰创机械有限公司 | 一种智能化浇注机 |
| CN113649555A (zh) * | 2021-07-30 | 2021-11-16 | 共享智能铸造产业创新中心有限公司 | 一种自动浇铸机及浇铸方法 |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112998A (en) * | 1975-10-22 | 1978-09-12 | Fujiwa Kika Kabushiki Kaisha | Pouring method and apparatus therefor |
| DE3532763A1 (de) * | 1984-09-15 | 1986-03-27 | Gebr. Wöhr GmbH und Co KG, 7080 Aalen | Verfahren und vorrichtung zum automatischen vergiessen von fluessigem metall |
| DE3610120C1 (en) * | 1986-03-26 | 1987-04-09 | Glama Maschb Gmbh | Casting machine |
| JPH0569111A (ja) * | 1991-09-09 | 1993-03-23 | Towa Kiko Kk | 自動注湯方法 |
| JPH08141732A (ja) * | 1994-11-15 | 1996-06-04 | Riken Corp | 注湯装置および注湯法 |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4155400A (en) * | 1977-10-31 | 1979-05-22 | Mcneil Corporation | Ladle for and method of tilting about two axes for pouring |
| US4304343A (en) * | 1979-10-29 | 1981-12-08 | Modern Equipment Company | Hydraulic nose tilt pouring device |
| BE1004402A6 (fr) * | 1989-08-30 | 1992-11-17 | Internat Ind Engineering S A | Dispositif de coulee obturable pour un conteneur siderurgique ou metallurgique. |
| JPH04190960A (ja) * | 1990-11-22 | 1992-07-09 | Daido Steel Co Ltd | 懸垂型注湯搬送装置 |
| JP2668487B2 (ja) * | 1992-09-02 | 1997-10-27 | 藤和機工 株式会社 | 自動注湯装置 |
| EP0592365B1 (de) * | 1992-10-07 | 1997-08-20 | Maschinenfabrik & Eisengiesserei Ed. Mezger AG. | Verfahren und Vorrichtung zur Bewegungssteuerung einer Giesspfanne in einer Giessanlage |
| JP3079018B2 (ja) * | 1995-04-19 | 2000-08-21 | 藤和機工株式会社 | 自動注湯方法及び装置 |
-
1998
- 1998-06-17 CA CA002292650A patent/CA2292650C/en not_active Expired - Fee Related
- 1998-06-17 DK DK98923971T patent/DK0996517T3/da active
- 1998-06-17 WO PCT/CH1998/000261 patent/WO1999000205A1/de not_active Ceased
- 1998-06-17 DE DE59800642T patent/DE59800642C5/de not_active Expired - Lifetime
- 1998-06-17 KR KR10-1999-7011804A patent/KR100369645B1/ko not_active Ceased
- 1998-06-17 AT AT98923971T patent/ATE200639T1/de not_active IP Right Cessation
- 1998-06-17 EP EP98923971A patent/EP0996517B1/de not_active Expired - Lifetime
- 1998-06-17 PT PT98923971T patent/PT996517E/pt unknown
- 1998-06-17 AU AU76350/98A patent/AU7635098A/en not_active Abandoned
- 1998-06-17 ES ES98923971T patent/ES2158683T3/es not_active Expired - Lifetime
- 1998-06-17 JP JP50518299A patent/JP3329834B2/ja not_active Ceased
- 1998-06-17 US US09/446,538 patent/US6619371B1/en not_active Expired - Fee Related
- 1998-06-17 CN CN98805714A patent/CN1080154C/zh not_active Expired - Fee Related
- 1998-06-17 BR BR9810940-5A patent/BR9810940A/pt active IP Right Grant
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4112998A (en) * | 1975-10-22 | 1978-09-12 | Fujiwa Kika Kabushiki Kaisha | Pouring method and apparatus therefor |
| DE3532763A1 (de) * | 1984-09-15 | 1986-03-27 | Gebr. Wöhr GmbH und Co KG, 7080 Aalen | Verfahren und vorrichtung zum automatischen vergiessen von fluessigem metall |
| DE3610120C1 (en) * | 1986-03-26 | 1987-04-09 | Glama Maschb Gmbh | Casting machine |
| JPH0569111A (ja) * | 1991-09-09 | 1993-03-23 | Towa Kiko Kk | 自動注湯方法 |
| JPH08141732A (ja) * | 1994-11-15 | 1996-06-04 | Riken Corp | 注湯装置および注湯法 |
Non-Patent Citations (2)
| Title |
|---|
| PATENT ABSTRACTS OF JAPAN vol. 017, no. 379 (M - 1447) 16 July 1993 (1993-07-16) * |
| PATENT ABSTRACTS OF JAPAN vol. 096, no. 010 31 October 1996 (1996-10-31) * |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2004110683A1 (de) * | 2003-06-13 | 2004-12-23 | Künkel-Wagner SLS Swisspour AG | Giessroboter mit einer wägezelle |
| RU2311259C1 (ru) * | 2006-05-11 | 2007-11-27 | Государственное образовательное учреждение высшего профессионального образования "Уральский государственный технический университет-УПИ" | Устройство для плавления и дозирования легкоплавких металлов |
| WO2008099556A1 (en) * | 2007-02-15 | 2008-08-21 | Sintokogio, Ltd. | Automatic pouring method and device |
| DE102008003530A1 (de) | 2007-02-15 | 2008-08-28 | Fujiwa Denki Co., Ltd., Nagoya | Automatisches Gießverfahren und Gießvorrichtung |
| EP1967302A1 (de) | 2007-02-15 | 2008-09-10 | Sintokogio, Ltd. | Automatisches Ausgießverfahren und entsprechende Vorrichtung |
| WO2010128610A1 (en) * | 2009-05-08 | 2010-11-11 | Sintokogio, Ltd. | Carriage to transport a ladle and to transfer molten metal into equipment for pouring and transportation line for transporting molten metal |
| US9186725B2 (en) | 2009-05-08 | 2015-11-17 | Sintokogio, Ltd. | Carriage to transport a ladle and to transfer molten metal into equipment for pouring and transportation line for transporting molten metal |
Also Published As
| Publication number | Publication date |
|---|---|
| JP3329834B2 (ja) | 2002-09-30 |
| CN1261830A (zh) | 2000-08-02 |
| CN1080154C (zh) | 2002-03-06 |
| BR9810940A (pt) | 2000-09-26 |
| DE59800642C5 (de) | 2010-06-10 |
| DE59800642D1 (de) | 2001-05-23 |
| ATE200639T1 (de) | 2001-05-15 |
| CA2292650C (en) | 2005-10-25 |
| EP0996517B1 (de) | 2001-04-18 |
| EP0996517A1 (de) | 2000-05-03 |
| KR100369645B1 (ko) | 2003-01-30 |
| KR20010039513A (ko) | 2001-05-15 |
| JP2001507631A (ja) | 2001-06-12 |
| ES2158683T3 (es) | 2001-09-01 |
| AU7635098A (en) | 1999-01-19 |
| PT996517E (pt) | 2001-08-30 |
| DK0996517T3 (da) | 2001-07-02 |
| CA2292650A1 (en) | 1999-01-07 |
| US6619371B1 (en) | 2003-09-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0996517B1 (de) | Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage | |
| EP0592365B1 (de) | Verfahren und Vorrichtung zur Bewegungssteuerung einer Giesspfanne in einer Giessanlage | |
| DE2744180C3 (de) | Gießpfanne mit einer Kippvorrichtung | |
| DE69505670T2 (de) | Verfahren und vorrichtung zum beschicken eines elektroofens mit flüssigmetall | |
| EP0470223A1 (de) | Metallurgisches aggregat | |
| EP0011696B1 (de) | Vorrichtung für die Speisung von einem kontinuierlich umlaufenden Giesskarussell | |
| EP0999907B1 (de) | Vorrichtung und verfahren zum wechseln eines wechselteiles einer kokillenanordnung einer stranggiessanlage | |
| DE1207554B (de) | Wahlweise um zwei verschiedene Kippachsen kippbarer rinnenloser Induktions-Tiegelofen | |
| DE3437828C2 (de) | Vorrichtung zum Einfüllen von rieselfähigem Füllmaterial in eine im Boden eines metallurgischen Gefäßes angeordnete Abstichöffnung | |
| EP3993923B1 (de) | Einrichtung zum manipulieren eines giessrohrs bei einer wechselvorrichtung am ausguss eines metallurgischen behälters | |
| DE1201954C2 (de) | Zylindrischer induktionsofen | |
| EP0140217A1 (de) | Verfahren und Vorrichtung zum Wechseln von Giesspfanne und Zwischenbehälter an einer Stranggiessanlage | |
| DE68920334T2 (de) | Vorrichtung zum regeln der fliessgeschwindigkeit von geschmolzenem metall. | |
| DE3786071T2 (de) | Giesspfanne zum Giessen von flüssigem Metall. | |
| WO1997024200A1 (de) | Verfahren und vorrichtung zur bewegungssteuerung einer giesspfanne mit geringer giesshöhe in einer giessanlage | |
| DE1945141A1 (de) | Einrichtung zum horizontalen Stranggiessen | |
| DE2514305C3 (de) | Vorrichtung zum Gießen von Metall in Formen | |
| DE19546340A1 (de) | Einrichtung zum Zuführen von Stahl in eine Stranggießkokille | |
| AT403773B (de) | Metallurgisches gefäss | |
| LU82416A1 (de) | Vorrichtung und verfahren zum chargenweisen giessen in einer stahlstranggiesserei | |
| DE69419486T2 (de) | Giessapparat zum automatischen Giessen mit einer unter Druck stehenden Pfanne | |
| EP0001035A1 (de) | Mischer, insbesondere Roheisenmischer | |
| DE2813103A1 (de) | Vorrichtung zum vergiessen dosierter mengen von metallschmelzen | |
| DE2127886A1 (en) | Mechanical ladle - for transferring molten metal from a smelting or heating furnace to a pressure-casting machine | |
| DD201492B1 (de) | Vorrichtung zum auskleiden bzw.-futter metallurgischer giesspfannen |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| WWE | Wipo information: entry into national phase |
Ref document number: 98805714.X Country of ref document: CN |
|
| AK | Designated states |
Kind code of ref document: A1 Designated state(s): AU BR CA CN CZ HU IL JP KR MX NO PL RO RU SG TR US |
|
| AL | Designated countries for regional patents |
Kind code of ref document: A1 Designated state(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LU MC NL PT SE |
|
| DFPE | Request for preliminary examination filed prior to expiration of 19th month from priority date (pct application filed before 20040101) | ||
| 121 | Ep: the epo has been informed by wipo that ep was designated in this application | ||
| WWE | Wipo information: entry into national phase |
Ref document number: 1998923971 Country of ref document: EP |
|
| ENP | Entry into the national phase |
Ref document number: 2292650 Country of ref document: CA Ref document number: 2292650 Country of ref document: CA Kind code of ref document: A |
|
| WWE | Wipo information: entry into national phase |
Ref document number: PA/a/1999/011781 Country of ref document: MX Ref document number: 1019997011804 Country of ref document: KR |
|
| WWE | Wipo information: entry into national phase |
Ref document number: 09446538 Country of ref document: US |
|
| WWP | Wipo information: published in national office |
Ref document number: 1998923971 Country of ref document: EP |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1998923971 Country of ref document: EP |
|
| WWP | Wipo information: published in national office |
Ref document number: 1019997011804 Country of ref document: KR |
|
| WWG | Wipo information: grant in national office |
Ref document number: 1019997011804 Country of ref document: KR |