FR74652E - Diffusion transfer process for obtaining direct positive photographic images - Google Patents

Diffusion transfer process for obtaining direct positive photographic images

Info

Publication number
FR74652E
FR74652E FR781642A FR781642A FR74652E FR 74652 E FR74652 E FR 74652E FR 781642 A FR781642 A FR 781642A FR 781642 A FR781642 A FR 781642A FR 74652 E FR74652 E FR 74652E
Authority
FR
France
Prior art keywords
transfer process
photographic images
diffusion transfer
direct positive
positive 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
FR781642A
Other languages
French (fr)
Inventor
Gerard Michiel Sevens
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.)
Gevaert Photo Producten NV
Original Assignee
Gevaert Photo Producten NV
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 to BE574756D priority Critical patent/BE574756A/xx
Application filed by Gevaert Photo Producten NV filed Critical Gevaert Photo Producten NV
Priority to FR781642A priority patent/FR74652E/en
Priority to GB4003459A priority patent/GB867174A/en
Application granted granted Critical
Publication of FR74652E publication Critical patent/FR74652E/en
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
    • G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
    • G03C8/24—Photosensitive materials characterised by the image-receiving section
    • G03C8/243—Toners for the silver image

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR781642A 1958-12-15 1958-12-15 Diffusion transfer process for obtaining direct positive photographic images Expired FR74652E (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
BE574756D BE574756A (en) 1958-12-15
FR781642A FR74652E (en) 1958-12-15 1958-12-15 Diffusion transfer process for obtaining direct positive photographic images
GB4003459A GB867174A (en) 1958-12-15 1959-11-25 Improvements in or relating to the photographic diffusion transfer process

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR781642A FR74652E (en) 1958-12-15 1958-12-15 Diffusion transfer process for obtaining direct positive photographic images

Publications (1)

Publication Number Publication Date
FR74652E true FR74652E (en) 1960-12-26

Family

ID=8709250

Family Applications (1)

Application Number Title Priority Date Filing Date
FR781642A Expired FR74652E (en) 1958-12-15 1958-12-15 Diffusion transfer process for obtaining direct positive photographic images

Country Status (3)

Country Link
BE (1) BE574756A (en)
FR (1) FR74652E (en)
GB (1) GB867174A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BE608384A (en) * 1960-09-24
BE605802A (en) * 1961-07-06

Also Published As

Publication number Publication date
GB867174A (en) 1961-05-03
BE574756A (en)

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