CA368694A - Vision testing apparatus - Google Patents

Vision testing apparatus

Info

Publication number
CA368694A
CA368694A CA368694A CA368694DA CA368694A CA 368694 A CA368694 A CA 368694A CA 368694 A CA368694 A CA 368694A CA 368694D A CA368694D A CA 368694DA CA 368694 A CA368694 A CA 368694A
Authority
CA
Canada
Prior art keywords
testing apparatus
vision testing
vision
testing
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
CA368694A
Other languages
French (fr)
Inventor
E. Tensen Hugo
P. Wheelock Arthur
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 CA368694A publication Critical patent/CA368694A/en
Expired legal-status Critical Current

Links

CA368694A Vision testing apparatus Expired CA368694A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA368694T

Publications (1)

Publication Number Publication Date
CA368694A true CA368694A (en) 1937-09-14

Family

ID=35369761

Family Applications (1)

Application Number Title Priority Date Filing Date
CA368694A Expired CA368694A (en) Vision testing apparatus

Country Status (1)

Country Link
CA (1) CA368694A (en)

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