FR788203A - Improvements in glasses for presbyopics, myopic, astigmatic in "double vision" with a minimum supplement - Google Patents
Improvements in glasses for presbyopics, myopic, astigmatic in "double vision" with a minimum supplementInfo
- Publication number
- FR788203A FR788203A FR788203DA FR788203A FR 788203 A FR788203 A FR 788203A FR 788203D A FR788203D A FR 788203DA FR 788203 A FR788203 A FR 788203A
- Authority
- FR
- France
- Prior art keywords
- presbyopics
- myopic
- astigmatic
- glasses
- double vision
- 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
- G02C7/06—Lenses; Lens systems ; Methods of designing lenses bifocal; multifocal ; progressive
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 |
---|---|---|---|
FR788203T | 1935-02-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR788203A true FR788203A (en) | 1935-10-07 |
Family
ID=9219411
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR788203D Expired FR788203A (en) | 1935-02-09 | 1935-02-09 | Improvements in glasses for presbyopics, myopic, astigmatic in "double vision" with a minimum supplement |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR788203A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574960A (en) * | 1946-10-14 | 1951-11-13 | Henry A Courmettes | Cataract bifocal lens |
-
1935
- 1935-02-09 FR FR788203D patent/FR788203A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2574960A (en) * | 1946-10-14 | 1951-11-13 | Henry A Courmettes | Cataract bifocal lens |
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