CA220627A - Lentille bifocale - Google Patents

Lentille bifocale

Info

Publication number
CA220627A
CA220627A CA220627A CA220627DA CA220627A CA 220627 A CA220627 A CA 220627A CA 220627 A CA220627 A CA 220627A CA 220627D A CA220627D A CA 220627DA CA 220627 A CA220627 A CA 220627A
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
CA220627A
Other languages
English (en)
Inventor
Louis Canepa Michael
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 CA220627A publication Critical patent/CA220627A/fr
Expired legal-status Critical Current

Links

CA220627A Lentille bifocale Expired CA220627A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA220627T

Publications (1)

Publication Number Publication Date
CA220627A true CA220627A (fr) 1922-07-11

Family

ID=35115071

Family Applications (1)

Application Number Title Priority Date Filing Date
CA220627A Expired CA220627A (fr) Lentille bifocale

Country Status (1)

Country Link
CA (1) CA220627A (fr)

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