CA92209A - Bifocal lense - Google Patents
Bifocal lenseInfo
- Publication number
- CA92209A CA92209A CA000092209A CA92209DA CA92209A CA 92209 A CA92209 A CA 92209A CA 000092209 A CA000092209 A CA 000092209A CA 92209D A CA92209D A CA 92209DA CA 92209 A CA92209 A CA 92209A
- Authority
- CA
- Canada
- Prior art keywords
- lense
- bifocal
- bifocal lense
- 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 |
---|---|---|---|
CA92209T | 1904-09-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
CA92209A true CA92209A (en) | 1905-03-21 |
Family
ID=45208744
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA000092209A Expired CA92209A (en) | 1904-09-22 | 1904-09-22 | Bifocal lense |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA92209A (en) |
-
1904
- 1904-09-22 CA CA000092209A patent/CA92209A/en not_active Expired
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