USD244483S - Optical refraction testing instrument - Google Patents
Optical refraction testing instrument Download PDFInfo
- Publication number
- USD244483S USD244483S US05/565,110 US56511075F USD244483S US D244483 S USD244483 S US D244483S US 56511075 F US56511075 F US 56511075F US D244483 S USD244483 S US D244483S
- Authority
- US
- United States
- Prior art keywords
- testing instrument
- optical refraction
- refraction testing
- optical
- instrument
- 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 - Lifetime
Links
Images
Description
FIG. 1 is a perspective view of an optical refraction testing instrument, showing my new design.
FIG. 2 is a front elevational view thereof.
FIG. 3 is a top plan view thereof.
FIG. 4 is a side elevational view as taken from the left hand side of FIG. 2.
FIG. 5 is a bottom plan view thereof.
FIG. 6 is a rear elevational view thereof.
Claims (1)
- The ornamental design for an optical refraction testing instrument, substantially as shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/565,110 USD244483S (en) | 1975-04-04 | 1975-04-04 | Optical refraction testing instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/565,110 USD244483S (en) | 1975-04-04 | 1975-04-04 | Optical refraction testing instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| USD244483S true USD244483S (en) | 1977-05-24 |
Family
ID=65432761
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US05/565,110 Expired - Lifetime USD244483S (en) | 1975-04-04 | 1975-04-04 | Optical refraction testing instrument |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | USD244483S (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD253909S (en) | 1977-07-08 | 1980-01-08 | American Optical Corporation | Refractometer |
| USD316144S (en) | 1988-02-12 | 1991-04-09 | Canon Kabushiki Kaisha | Refractometer |
| USD429175S (en) * | 1999-07-20 | 2000-08-08 | Citicorp Development Center, Inc. | Desktop iris scanning device |
| USD437415S1 (en) | 2000-02-09 | 2001-02-06 | Titmus Optical, Inc. | Vision screener |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2283769A (en) | 1941-01-27 | 1942-05-19 | Lawrence G Schwanzel | Eye reaction testing |
| US3778164A (en) | 1972-11-29 | 1973-12-11 | American Optical Corp | Ophthalmometer having alternative viewing measuring systems and including improved contact lens holding means |
-
1975
- 1975-04-04 US US05/565,110 patent/USD244483S/en not_active Expired - Lifetime
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2283769A (en) | 1941-01-27 | 1942-05-19 | Lawrence G Schwanzel | Eye reaction testing |
| US3778164A (en) | 1972-11-29 | 1973-12-11 | American Optical Corp | Ophthalmometer having alternative viewing measuring systems and including improved contact lens holding means |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| USD253909S (en) | 1977-07-08 | 1980-01-08 | American Optical Corporation | Refractometer |
| USD316144S (en) | 1988-02-12 | 1991-04-09 | Canon Kabushiki Kaisha | Refractometer |
| USD429175S (en) * | 1999-07-20 | 2000-08-08 | Citicorp Development Center, Inc. | Desktop iris scanning device |
| USD437415S1 (en) | 2000-02-09 | 2001-02-06 | Titmus Optical, Inc. | Vision screener |
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