CA320331A - Optical trial frame - Google Patents

Optical trial frame

Info

Publication number
CA320331A
CA320331A CA320331A CA320331DA CA320331A CA 320331 A CA320331 A CA 320331A CA 320331 A CA320331 A CA 320331A CA 320331D A CA320331D A CA 320331DA CA 320331 A CA320331 A CA 320331A
Authority
CA
Canada
Prior art keywords
trial frame
optical trial
optical
frame
trial
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
CA320331A
Other languages
French (fr)
Inventor
J. Wrighton William
D. Fillyer 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 CA320331A publication Critical patent/CA320331A/en
Expired legal-status Critical Current

Links

CA320331A Optical trial frame Expired CA320331A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA320331T

Publications (1)

Publication Number Publication Date
CA320331A true CA320331A (en) 1932-03-08

Family

ID=35280885

Family Applications (1)

Application Number Title Priority Date Filing Date
CA320331A Expired CA320331A (en) Optical trial frame

Country Status (1)

Country Link
CA (1) CA320331A (en)

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