CA635710A - Method of making bifocal lenses - Google Patents

Method of making bifocal lenses

Info

Publication number
CA635710A
CA635710A CA635710A CA635710DA CA635710A CA 635710 A CA635710 A CA 635710A CA 635710 A CA635710 A CA 635710A CA 635710D A CA635710D A CA 635710DA CA 635710 A CA635710 A CA 635710A
Authority
CA
Canada
Prior art keywords
bifocal lenses
making bifocal
making
lenses
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
CA635710A
Inventor
F. Young Fletcher
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.)
Corning Glass Works
Original Assignee
Corning Glass Works
Publication date
Application granted granted Critical
Publication of CA635710A publication Critical patent/CA635710A/en
Expired legal-status Critical Current

Links

CA635710A Method of making bifocal lenses Expired CA635710A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA635710T

Publications (1)

Publication Number Publication Date
CA635710A true CA635710A (en) 1962-01-30

Family

ID=35891900

Family Applications (1)

Application Number Title Priority Date Filing Date
CA635710A Expired CA635710A (en) Method of making bifocal lenses

Country Status (1)

Country Link
CA (1) CA635710A (en)

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