FR718590A - Perfectionnements aux plaques ou films photographiques - Google Patents

Perfectionnements aux plaques ou films photographiques

Info

Publication number
FR718590A
FR718590A FR718590DA FR718590A FR 718590 A FR718590 A FR 718590A FR 718590D A FR718590D A FR 718590DA FR 718590 A FR718590 A FR 718590A
Authority
FR
France
Prior art keywords
films
photographic plates
photographic
plates
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
Other languages
English (en)
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.)
PONT PATHE FILM Manufacturing CORP DU
Original Assignee
PONT PATHE FILM Manufacturing CORP DU
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
Priority claimed from US462197A external-priority patent/US1900468A/en
Priority claimed from US462471A external-priority patent/US1900459A/en
Application filed by PONT PATHE FILM Manufacturing CORP DU filed Critical PONT PATHE FILM Manufacturing CORP DU
Application granted granted Critical
Publication of FR718590A publication Critical patent/FR718590A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
    • G03C7/20—Subtractive colour processes using differently sensitised films, each coated on its own base, e.g. bipacks, tripacks

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
FR718590D 1930-06-19 1931-06-12 Perfectionnements aux plaques ou films photographiques Expired FR718590A (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US462197A US1900468A (en) 1930-06-19 1930-06-19 Multipack negative system
US462471A US1900459A (en) 1930-06-20 1930-06-20 Multipack negative system

Publications (1)

Publication Number Publication Date
FR718590A true FR718590A (fr) 1932-01-26

Family

ID=27040263

Family Applications (1)

Application Number Title Priority Date Filing Date
FR718590D Expired FR718590A (fr) 1930-06-19 1931-06-12 Perfectionnements aux plaques ou films photographiques

Country Status (2)

Country Link
DE (1) DE664313C (fr)
FR (1) FR718590A (fr)

Also Published As

Publication number Publication date
DE664313C (de) 1938-08-24

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