CA357568A - Lentille bifocale - Google Patents

Lentille bifocale

Info

Publication number
CA357568A
CA357568A CA357568A CA357568DA CA357568A CA 357568 A CA357568 A CA 357568A CA 357568 A CA357568 A CA 357568A CA 357568D A CA357568D A CA 357568DA CA 357568 A CA357568 A CA 357568A
Authority
CA
Canada
Prior art keywords
bifocal lens
bifocal
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
CA357568A
Other languages
English (en)
Inventor
M. Malcolm James
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.)
Individual
Original Assignee
Individual
Publication date
Application granted granted Critical
Publication of CA357568A publication Critical patent/CA357568A/fr
Expired legal-status Critical Current

Links

CA357568A Lentille bifocale Expired CA357568A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA357568T

Publications (1)

Publication Number Publication Date
CA357568A true CA357568A (fr) 1936-05-05

Family

ID=35356908

Family Applications (1)

Application Number Title Priority Date Filing Date
CA357568A Expired CA357568A (fr) Lentille bifocale

Country Status (1)

Country Link
CA (1) CA357568A (fr)

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