CA297667A - Bifocal lens - Google Patents

Bifocal lens

Info

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
Application number
CA297667A
Other languages
French (fr)
Inventor
Bernard Cohen Samuel
Henry Walsh William
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA297667A publication Critical patent/CA297667A/en
Expired legal-status Critical Current

Links

CA297667A Bifocal lens Expired CA297667A (en)

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)

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