CA243339A - Fabrication de lentilles bifocales fondues - Google Patents

Fabrication de lentilles bifocales fondues

Info

Publication number
CA243339A
CA243339A CA243339A CA243339DA CA243339A CA 243339 A CA243339 A CA 243339A CA 243339 A CA243339 A CA 243339A CA 243339D A CA243339D A CA 243339DA CA 243339 A CA243339 A CA 243339A
Authority
CA
Canada
Prior art keywords
bifocal lenses
making fused
fused bifocal
making
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
CA243339A
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.)
FRANKLIN OPTICAL Co
Original Assignee
FRANKLIN OPTICAL Co
Publication date
Application granted granted Critical
Publication of CA243339A publication Critical patent/CA243339A/fr
Expired legal-status Critical Current

Links

CA243339A Fabrication de lentilles bifocales fondues Expired CA243339A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA243339T

Publications (1)

Publication Number Publication Date
CA243339A true CA243339A (fr) 1924-09-30

Family

ID=35147366

Family Applications (1)

Application Number Title Priority Date Filing Date
CA243339A Expired CA243339A (fr) Fabrication de lentilles bifocales fondues

Country Status (1)

Country Link
CA (1) CA243339A (fr)

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