CA375778A - Fabrication de verres multifocaux - Google Patents

Fabrication de verres multifocaux

Info

Publication number
CA375778A
CA375778A CA375778A CA375778DA CA375778A CA 375778 A CA375778 A CA 375778A CA 375778 A CA375778 A CA 375778A CA 375778D A CA375778D A CA 375778DA CA 375778 A CA375778 A CA 375778A
Authority
CA
Canada
Prior art keywords
multifocal lens
lens manufacture
manufacture
multifocal
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
CA375778A
Other languages
English (en)
Inventor
F. Taylor Dudley
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.)
CONTINENTAL OPTICAL Co
Original Assignee
CONTINENTAL OPTICAL Co
Publication date
Application granted granted Critical
Publication of CA375778A publication Critical patent/CA375778A/fr
Expired legal-status Critical Current

Links

CA375778A Fabrication de verres multifocaux Expired CA375778A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA375778T

Publications (1)

Publication Number Publication Date
CA375778A true CA375778A (fr) 1938-08-16

Family

ID=35380102

Family Applications (1)

Application Number Title Priority Date Filing Date
CA375778A Expired CA375778A (fr) Fabrication de verres multifocaux

Country Status (1)

Country Link
CA (1) CA375778A (fr)

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