CA198103A - Appareil a surfaces de lentilles - Google Patents

Appareil a surfaces de lentilles

Info

Publication number
CA198103A
CA198103A CA198103A CA198103DA CA198103A CA 198103 A CA198103 A CA 198103A CA 198103 A CA198103 A CA 198103A CA 198103D A CA198103D A CA 198103DA CA 198103 A CA198103 A CA 198103A
Authority
CA
Canada
Prior art keywords
surfacing
lenses
surfacing lenses
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
CA198103A
Other languages
English (en)
Inventor
Harvey Pearson John
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 CA198103A publication Critical patent/CA198103A/fr
Expired legal-status Critical Current

Links

CA198103A Appareil a surfaces de lentilles Expired CA198103A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA198103T

Publications (1)

Publication Number Publication Date
CA198103A true CA198103A (fr) 1920-03-09

Family

ID=35072541

Family Applications (1)

Application Number Title Priority Date Filing Date
CA198103A Expired CA198103A (fr) Appareil a surfaces de lentilles

Country Status (1)

Country Link
CA (1) CA198103A (fr)

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