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CA404006A - One-piece multifocal lens producing apparatus - Google Patents

One-piece multifocal lens producing apparatus

Info

Publication number
CA404006A
CA404006A CA404006A CA404006DA CA404006A CA 404006 A CA404006 A CA 404006A CA 404006 A CA404006 A CA 404006A CA 404006D A CA404006D A CA 404006DA CA 404006 A CA404006 A CA 404006A
Authority
CA
Canada
Prior art keywords
producing apparatus
multifocal lens
lens producing
piece multifocal
piece
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
CA404006A
Other languages
French (fr)
Inventor
L. Houchin Lowell
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 CA404006A publication Critical patent/CA404006A/en
Expired legal-status Critical Current

Links

CA404006A One-piece multifocal lens producing apparatus Expired CA404006A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA404006T

Publications (1)

Publication Number Publication Date
CA404006A true CA404006A (en) 1942-04-07

Family

ID=35415304

Family Applications (1)

Application Number Title Priority Date Filing Date
CA404006A Expired CA404006A (en) One-piece multifocal lens producing apparatus

Country Status (1)

Country Link
CA (1) CA404006A (en)

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