CA111052A - Appareil a production de lentilles bifocales - Google Patents

Appareil a production de lentilles bifocales

Info

Publication number
CA111052A
CA111052A CA000111052A CA111052DA CA111052A CA 111052 A CA111052 A CA 111052A CA 000111052 A CA000111052 A CA 000111052A CA 111052D A CA111052D A CA 111052DA CA 111052 A CA111052 A CA 111052A
Authority
CA
Canada
Prior art keywords
bifocal lenses
producing
producing bifocal
lenses
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
CA000111052A
Other languages
English (en)
Inventor
Charles W. Conner
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 CA111052A publication Critical patent/CA111052A/fr
Expired legal-status Critical Current

Links

CA000111052A 1907-06-10 1907-06-10 Appareil a production de lentilles bifocales Expired CA111052A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA111052T 1907-06-10

Publications (1)

Publication Number Publication Date
CA111052A true CA111052A (fr) 1908-03-31

Family

ID=45230777

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000111052A Expired CA111052A (fr) 1907-06-10 1907-06-10 Appareil a production de lentilles bifocales

Country Status (1)

Country Link
CA (1) CA111052A (fr)

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