FR1021244A - Telescopic glasses - Google Patents
Telescopic glassesInfo
- Publication number
- FR1021244A FR1021244A FR1021244DA FR1021244A FR 1021244 A FR1021244 A FR 1021244A FR 1021244D A FR1021244D A FR 1021244DA FR 1021244 A FR1021244 A FR 1021244A
- Authority
- FR
- France
- Prior art keywords
- telescopic glasses
- glasses
- telescopic
- 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
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02C—SPECTACLES; SUNGLASSES OR GOGGLES INSOFAR AS THEY HAVE THE SAME FEATURES AS SPECTACLES; CONTACT LENSES
- G02C7/00—Optical parts
- G02C7/02—Lenses; Lens systems ; Methods of designing lenses
- G02C7/08—Auxiliary lenses; Arrangements for varying focal length
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Physics & Mathematics (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1021244T | 1950-07-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR1021244A true FR1021244A (en) | 1953-02-16 |
Family
ID=9576859
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR1021244D Expired FR1021244A (en) | 1950-07-01 | 1950-07-01 | Telescopic glasses |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR1021244A (en) |
-
1950
- 1950-07-01 FR FR1021244D patent/FR1021244A/en not_active Expired
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