CA224473A - Bifocal lens - Google Patents
Bifocal lensInfo
- Publication number
- CA224473A CA224473A CA224473A CA224473DA CA224473A CA 224473 A CA224473 A CA 224473A CA 224473 A CA224473 A CA 224473A CA 224473D A CA224473D A CA 224473DA CA 224473 A CA224473 A CA 224473A
- 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 |
---|---|---|---|
CA224473T |
Publications (1)
Publication Number | Publication Date |
---|---|
CA224473A true CA224473A (en) | 1922-10-03 |
Family
ID=35120076
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CA224473A Expired CA224473A (en) | Bifocal lens |
Country Status (1)
Country | Link |
---|---|
CA (1) | CA224473A (en) |
-
0
- CA CA224473A patent/CA224473A/en not_active Expired
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