CA111699A - Bifocal lens - Google Patents
Bifocal lensInfo
- Publication number
- CA111699A CA111699A CA000111699A CA111699DA CA111699A CA 111699 A CA111699 A CA 111699A CA 000111699 A CA000111699 A CA 000111699A CA 111699D A CA111699D A CA 111699DA CA 111699 A CA111699 A CA 111699A
- Authority
- CA
- Canada
- Prior art keywords
- bifocal lens
- bifocal
- lens
- 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
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CA111699T | 1904-08-15 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA111699A true CA111699A (en) | 1908-05-05 |
Family
ID=45231424
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000111699A Expired CA111699A (en) | 1904-08-15 | 1904-08-15 | Bifocal lens |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA111699A (en) |
-
1904
- 1904-08-15 CA CA000111699A patent/CA111699A/en not_active Expired
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