CA243338A - Fabrication de lentilles bifocales fondues - Google Patents

Fabrication de lentilles bifocales fondues

Info

Publication number
CA243338A
CA243338A CA243338A CA243338DA CA243338A CA 243338 A CA243338 A CA 243338A CA 243338 A CA243338 A CA 243338A CA 243338D A CA243338D A CA 243338DA CA 243338 A CA243338 A CA 243338A
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
CA243338A
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 CA243338A publication Critical patent/CA243338A/fr
Expired legal-status Critical Current

Links

CA243338A Fabrication de lentilles bifocales fondues Expired CA243338A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA243338T

Publications (1)

Publication Number Publication Date
CA243338A true CA243338A (fr) 1924-09-30

Family

ID=35147365

Family Applications (1)

Application Number Title Priority Date Filing Date
CA243338A Expired CA243338A (fr) Fabrication de lentilles bifocales fondues

Country Status (1)

Country Link
CA (1) CA243338A (fr)

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