CA559228A - Photometre - Google Patents

Photometre

Info

Publication number
CA559228A
CA559228A CA559228A CA559228DA CA559228A CA 559228 A CA559228 A CA 559228A CA 559228 A CA559228 A CA 559228A CA 559228D A CA559228D A CA 559228DA CA 559228 A CA559228 A CA 559228A
Authority
CA
Canada
Prior art keywords
exposure meter
meter
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
CA559228A
Other languages
English (en)
Inventor
T. Williams Alexander
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.)
Daystrom Inc
Original Assignee
Daystrom Inc
Publication date
Application granted granted Critical
Publication of CA559228A publication Critical patent/CA559228A/fr
Expired legal-status Critical Current

Links

CA559228A Photometre Expired CA559228A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA559228T

Publications (1)

Publication Number Publication Date
CA559228A true CA559228A (fr) 1958-06-24

Family

ID=35725639

Family Applications (1)

Application Number Title Priority Date Filing Date
CA559228A Expired CA559228A (fr) Photometre

Country Status (1)

Country Link
CA (1) CA559228A (fr)

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