CA508183A - Method of producing photographic contrasts - Google Patents

Method of producing photographic contrasts

Info

Publication number
CA508183A
CA508183A CA508183A CA508183DA CA508183A CA 508183 A CA508183 A CA 508183A CA 508183 A CA508183 A CA 508183A CA 508183D A CA508183D A CA 508183DA CA 508183 A CA508183 A CA 508183A
Authority
CA
Canada
Prior art keywords
producing photographic
contrasts
photographic contrasts
producing
photographic
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
CA508183A
Other languages
French (fr)
Inventor
Goeman Bos Julius
Johannes Dippel Cornelis
Jan Houtman Harke
Jannes Keuning Klaas
Wijtzes Sjoerd
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.)
Koninklijke Philips NV
Original Assignee
Philips Gloeilampenfabrieken NV
Publication date
Application granted granted Critical
Publication of CA508183A publication Critical patent/CA508183A/en
Expired legal-status Critical Current

Links

CA508183A Method of producing photographic contrasts Expired CA508183A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA508183T

Publications (1)

Publication Number Publication Date
CA508183A true CA508183A (en) 1954-12-14

Family

ID=35659223

Family Applications (1)

Application Number Title Priority Date Filing Date
CA508183A Expired CA508183A (en) Method of producing photographic contrasts

Country Status (1)

Country Link
CA (1) CA508183A (en)

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