CA108263A - Methode de fabrication de lentilles bi-focales - Google Patents

Methode de fabrication de lentilles bi-focales

Info

Publication number
CA108263A
CA108263A CA000108263A CA108263DA CA108263A CA 108263 A CA108263 A CA 108263A CA 000108263 A CA000108263 A CA 000108263A CA 108263D A CA108263D A CA 108263DA CA 108263 A CA108263 A CA 108263A
Authority
CA
Canada
Prior art keywords
methode
bifocal lenses
making 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
CA000108263A
Other languages
English (en)
Inventor
Charles Noyes Brown
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 CA108263A publication Critical patent/CA108263A/fr
Expired legal-status Critical Current

Links

CA000108263A 1907-07-22 1907-07-22 Methode de fabrication de lentilles bi-focales Expired CA108263A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA108263T 1907-07-22

Publications (1)

Publication Number Publication Date
CA108263A true CA108263A (fr) 1907-10-29

Family

ID=45227989

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000108263A Expired CA108263A (fr) 1907-07-22 1907-07-22 Methode de fabrication de lentilles bi-focales

Country Status (1)

Country Link
CA (1) CA108263A (fr)

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