CA237235A - Lentille bifocale - Google Patents

Lentille bifocale

Info

Publication number
CA237235A
CA237235A CA237235A CA237235DA CA237235A CA 237235 A CA237235 A CA 237235A CA 237235 A CA237235 A CA 237235A CA 237235D A CA237235D A CA 237235DA CA 237235 A CA237235 A CA 237235A
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
CA237235A
Other languages
English (en)
Inventor
W. Bugbee Lucien
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.)
FRANKLIN OPTICAL Co
Original Assignee
FRANKLIN OPTICAL Co
Publication date
Application granted granted Critical
Publication of CA237235A publication Critical patent/CA237235A/fr
Expired legal-status Critical Current

Links

CA237235A Lentille bifocale Expired CA237235A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA237235T

Publications (1)

Publication Number Publication Date
CA237235A true CA237235A (fr) 1924-01-22

Family

ID=35141264

Family Applications (1)

Application Number Title Priority Date Filing Date
CA237235A Expired CA237235A (fr) Lentille bifocale

Country Status (1)

Country Link
CA (1) CA237235A (fr)

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