CA221951A - Lens - Google Patents

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Info

Publication number
CA221951A
CA221951A CA221951A CA221951DA CA221951A CA 221951 A CA221951 A CA 221951A CA 221951 A CA221951 A CA 221951A CA 221951D A CA221951D A CA 221951DA CA 221951 A CA221951 A CA 221951A
Authority
CA
Canada
Prior art keywords
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
CA221951A
Other languages
French (fr)
Inventor
D. Tilver Edgar
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.)
American Optical Corp
Original Assignee
American Optical Corp
Publication date
Application granted granted Critical
Publication of CA221951A publication Critical patent/CA221951A/en
Expired legal-status Critical Current

Links

CA221951A Lens Expired CA221951A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA221951T

Publications (1)

Publication Number Publication Date
CA221951A true CA221951A (en) 1922-08-08

Family

ID=35117553

Family Applications (1)

Application Number Title Priority Date Filing Date
CA221951A Expired CA221951A (en) Lens

Country Status (1)

Country Link
CA (1) CA221951A (en)

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