CA211228A - Optical apparatus - Google Patents

Optical apparatus

Info

Publication number
CA211228A
CA211228A CA211228A CA211228DA CA211228A CA 211228 A CA211228 A CA 211228A CA 211228 A CA211228 A CA 211228A CA 211228D A CA211228D A CA 211228DA CA 211228 A CA211228 A CA 211228A
Authority
CA
Canada
Prior art keywords
optical apparatus
optical
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
CA211228A
Other languages
French (fr)
Inventor
Roscoe Dennington 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.)
Westinghouse Canada Inc
Original Assignee
Canadian Westinghouse Co Ltd
Publication date
Application granted granted Critical
Publication of CA211228A publication Critical patent/CA211228A/en
Expired legal-status Critical Current

Links

CA211228A Optical apparatus Expired CA211228A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA211228T

Publications (1)

Publication Number Publication Date
CA211228A true CA211228A (en) 1921-05-03

Family

ID=35105007

Family Applications (1)

Application Number Title Priority Date Filing Date
CA211228A Expired CA211228A (en) Optical apparatus

Country Status (1)

Country Link
CA (1) CA211228A (en)

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