CA297667A - Bifocal lens - Google Patents
Bifocal lensInfo
- Publication number
- CA297667A CA297667A CA297667A CA297667DA CA297667A CA 297667 A CA297667 A CA 297667A CA 297667 A CA297667 A CA 297667A CA 297667D A CA297667D A CA 297667DA CA 297667 A CA297667 A CA 297667A
- 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 |
|---|---|---|---|
| CA297667T |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CA297667A true CA297667A (en) | 1930-02-25 |
Family
ID=35234987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA297667A Expired CA297667A (en) | Bifocal lens |
Country Status (1)
| Country | Link |
|---|---|
| CA (1) | CA297667A (en) |
-
0
- CA CA297667A patent/CA297667A/en not_active Expired
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