CA176892A - Obturateur d'ouverture panoramique - Google Patents

Obturateur d'ouverture panoramique

Info

Publication number
CA176892A
CA176892A CA000176892A CA176892DA CA176892A CA 176892 A CA176892 A CA 176892A CA 000176892 A CA000176892 A CA 000176892A CA 176892D A CA176892D A CA 176892DA CA 176892 A CA176892 A CA 176892A
Authority
CA
Canada
Prior art keywords
observation shutter
shutter
observation
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
CA000176892A
Other languages
English (en)
Inventor
Field White
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
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of CA176892A publication Critical patent/CA176892A/fr
Expired legal-status Critical Current

Links

CA000176892A 1917-01-11 1917-01-11 Obturateur d'ouverture panoramique Expired CA176892A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA176892T 1917-01-11

Publications (1)

Publication Number Publication Date
CA176892A true CA176892A (fr) 1917-05-08

Family

ID=45296545

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000176892A Expired CA176892A (fr) 1917-01-11 1917-01-11 Obturateur d'ouverture panoramique

Country Status (1)

Country Link
CA (1) CA176892A (fr)

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