FR918898A - Improvements to the production of photographic blues by semi-wet development - Google Patents

Improvements to the production of photographic blues by semi-wet development

Info

Publication number
FR918898A
FR918898A FR918898DA FR918898A FR 918898 A FR918898 A FR 918898A FR 918898D A FR918898D A FR 918898DA FR 918898 A FR918898 A FR 918898A
Authority
FR
France
Prior art keywords
blues
photographic
semi
production
wet development
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
French (fr)
Inventor
John Holden
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.)
Halden & Co Ltd J
Norton & Gregory Ltd
Original Assignee
Halden & Co Ltd J
Norton & Gregory Ltd
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 Halden & Co Ltd J, Norton & Gregory Ltd filed Critical Halden & Co Ltd J
Application granted granted Critical
Publication of FR918898A publication Critical patent/FR918898A/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
    • G03C1/00—Photosensitive materials
    • G03C1/64—Compositions containing iron compounds as photosensitive substances

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Photosensitive Polymer And Photoresist Processing (AREA)
FR918898D 1939-06-06 1945-09-05 Improvements to the production of photographic blues by semi-wet development Expired FR918898A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1654439A GB536567A (en) 1939-06-06 1939-06-06 Improvements in and relating to the production of photographic blue-prints by "semi-dry" development

Publications (1)

Publication Number Publication Date
FR918898A true FR918898A (en) 1947-02-20

Family

ID=10079223

Family Applications (1)

Application Number Title Priority Date Filing Date
FR918898D Expired FR918898A (en) 1939-06-06 1945-09-05 Improvements to the production of photographic blues by semi-wet development

Country Status (2)

Country Link
FR (1) FR918898A (en)
GB (1) GB536567A (en)

Also Published As

Publication number Publication date
GB536567A (en) 1941-05-20

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