CA234326A - Production de lentilles bifocales - Google Patents

Production de lentilles bifocales

Info

Publication number
CA234326A
CA234326A CA234326A CA234326DA CA234326A CA 234326 A CA234326 A CA 234326A CA 234326 A CA234326 A CA 234326A CA 234326D A CA234326D A CA 234326DA CA 234326 A CA234326 A CA 234326A
Authority
CA
Canada
Prior art keywords
bifocal lens
making bifocal
making
lens
bifocal
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
CA234326A
Other languages
English (en)
Inventor
W. Bugbee Lucian
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.)
ONEPIECE BIFOCAL LENS Co
Original Assignee
ONEPIECE BIFOCAL LENS Co
Publication date
Application granted granted Critical
Publication of CA234326A publication Critical patent/CA234326A/fr
Expired legal-status Critical Current

Links

CA234326A Production de lentilles bifocales Expired CA234326A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA234326T

Publications (1)

Publication Number Publication Date
CA234326A true CA234326A (fr) 1923-09-18

Family

ID=35131700

Family Applications (1)

Application Number Title Priority Date Filing Date
CA234326A Expired CA234326A (fr) Production de lentilles bifocales

Country Status (1)

Country Link
CA (1) CA234326A (fr)

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