CA183718A - Photographic exposure signal - Google Patents

Photographic exposure signal

Info

Publication number
CA183718A
CA183718A CA000183718A CA183718DA CA183718A CA 183718 A CA183718 A CA 183718A CA 000183718 A CA000183718 A CA 000183718A CA 183718D A CA183718D A CA 183718DA CA 183718 A CA183718 A CA 183718A
Authority
CA
Canada
Prior art keywords
exposure signal
photographic exposure
photographic
signal
exposure
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
CA000183718A
Other languages
French (fr)
Inventor
August Droste
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 CA183718A publication Critical patent/CA183718A/en
Expired legal-status Critical Current

Links

CA000183718A 1917-08-16 1917-08-16 Photographic exposure signal Expired CA183718A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA183718T 1917-08-16

Publications (1)

Publication Number Publication Date
CA183718A true CA183718A (en) 1918-04-23

Family

ID=45303370

Family Applications (1)

Application Number Title Priority Date Filing Date
CA000183718A Expired CA183718A (en) 1917-08-16 1917-08-16 Photographic exposure signal

Country Status (1)

Country Link
CA (1) CA183718A (en)

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