CA357357A - Verre bifocal et telescopique - Google Patents

Verre bifocal et telescopique

Info

Publication number
CA357357A
CA357357A CA357357A CA357357DA CA357357A CA 357357 A CA357357 A CA 357357A CA 357357 A CA357357 A CA 357357A CA 357357D A CA357357D A CA 357357DA CA 357357 A CA357357 A CA 357357A
Authority
CA
Canada
Prior art keywords
telescopic
bifocal lens
bifocal
lens
telescopic 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
CA357357A
Other languages
English (en)
Inventor
Polackoff Edward
Mulford Palmer Charles
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.)
Univis Lens Co
Original Assignee
Univis Lens Co
Publication date
Application granted granted Critical
Publication of CA357357A publication Critical patent/CA357357A/fr
Expired legal-status Critical Current

Links

CA357357A Verre bifocal et telescopique Expired CA357357A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA357357T

Publications (1)

Publication Number Publication Date
CA357357A true CA357357A (fr) 1936-04-21

Family

ID=35356697

Family Applications (1)

Application Number Title Priority Date Filing Date
CA357357A Expired CA357357A (fr) Verre bifocal et telescopique

Country Status (1)

Country Link
CA (1) CA357357A (fr)

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