FR725250A - Coupling arrangement for telephone systems - Google Patents
Coupling arrangement for telephone systemsInfo
- Publication number
- FR725250A FR725250A FR725250DA FR725250A FR 725250 A FR725250 A FR 725250A FR 725250D A FR725250D A FR 725250DA FR 725250 A FR725250 A FR 725250A
- Authority
- FR
- France
- Prior art keywords
- coupling arrangement
- telephone systems
- telephone
- systems
- coupling
- 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.)
- Expired
Links
- 230000008878 coupling Effects 0.000 title 1
- 238000010168 coupling process Methods 0.000 title 1
- 238000005859 coupling reaction Methods 0.000 title 1
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04Q—SELECTING
- H04Q3/00—Selecting arrangements
- H04Q3/0016—Arrangements providing connection between exchanges
Landscapes
- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Interface Circuits In Exchanges (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR725250T | 1931-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR725250A true FR725250A (en) | 1932-05-10 |
Family
ID=9109960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR725250D Expired FR725250A (en) | 1931-10-19 | 1931-10-19 | Coupling arrangement for telephone systems |
Country Status (2)
| Country | Link |
|---|---|
| US (1) | US2010365A (en) |
| FR (1) | FR725250A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2658109A (en) * | 1949-12-31 | 1953-11-03 | Stromberg Carlson Co | Automatic telephone system |
-
1931
- 1931-10-19 FR FR725250D patent/FR725250A/en not_active Expired
-
1932
- 1932-10-14 US US637748A patent/US2010365A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2010365A (en) | 1935-08-06 |
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