CA111699A - Bifocal lens - Google Patents

Bifocal lens

Info

Publication number
CA111699A
CA111699A CA000111699A CA111699DA CA111699A CA 111699 A CA111699 A CA 111699A CA 000111699 A CA000111699 A CA 000111699A CA 111699D A CA111699D A CA 111699DA CA 111699 A CA111699 A CA 111699A
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
CA000111699A
Other languages
French (fr)
Inventor
John Louis Borsch Jr.
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA111699A publication Critical patent/CA111699A/en
Expired legal-status Critical Current

Links

CA000111699A 1904-08-15 1904-08-15 Bifocal lens Expired CA111699A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA111699T 1904-08-15

Publications (1)

Publication Number Publication Date
CA111699A true CA111699A (en) 1908-05-05

Family

ID=45231424

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000111699A Expired CA111699A (en) 1904-08-15 1904-08-15 Bifocal lens

Country Status (1)

Country Link
CA (1) CA111699A (en)

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