FR600532A - Improvement in the preparation of photographic developers - Google Patents

Improvement in the preparation of photographic developers

Info

Publication number
FR600532A
FR600532A FR600532DA FR600532A FR 600532 A FR600532 A FR 600532A FR 600532D A FR600532D A FR 600532DA FR 600532 A FR600532 A FR 600532A
Authority
FR
France
Prior art keywords
improvement
preparation
photographic developers
developers
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
Other languages
French (fr)
Inventor
Pierre Schestakoff
Boris Merejkovsky
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 filed Critical
Application granted granted Critical
Publication of FR600532A publication Critical patent/FR600532A/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
    • G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
    • G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
    • G03C5/29—Development processes or agents therefor
    • G03C5/30—Developers
    • G03C5/3014—Hydrazine; Hydroxylamine; Urea; Derivatives thereof

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
FR600532D 1924-05-12 1925-04-21 Improvement in the preparation of photographic developers Expired FR600532A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CA258966T
DE1663959X 1924-05-12
FR600532T 1925-04-21
GB10756/25A GB255925A (en) 1924-05-12 1925-04-24 Improvements in and relating to the preparation of photographic developers

Publications (1)

Publication Number Publication Date
FR600532A true FR600532A (en) 1926-02-09

Family

ID=50069349

Family Applications (1)

Application Number Title Priority Date Filing Date
FR600532D Expired FR600532A (en) 1924-05-12 1925-04-21 Improvement in the preparation of photographic developers

Country Status (4)

Country Link
US (1) US1663959A (en)
CA (1) CA258966A (en)
FR (1) FR600532A (en)
GB (1) GB255925A (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2706157A (en) * 1951-07-21 1955-04-12 Grant Photo Products Inc Processing photographic paper and film
US2938793A (en) * 1957-12-23 1960-05-31 Technical Operations Inc Nitrosodisulfonate latensifier
US3751252A (en) * 1972-03-24 1973-08-07 Eastman Kodak Co Photothermographic element and process
JPS5227638A (en) * 1975-08-27 1977-03-02 Fuji Photo Film Co Ltd Method for stabilization of color developer
DE2744356A1 (en) * 1977-10-01 1979-04-05 Agfa Gevaert Ag PHOTOGRAPHIC REVERSAL WITHOUT A SECOND EXPOSURE
WO1985004025A1 (en) * 1984-03-02 1985-09-12 Minnesota Mining And Manufacturing Company Photographic tanning developer formulation
GB9422109D0 (en) 1994-11-02 1994-12-21 Minnesota Mining & Mfg Black and white photographic elements
US5508155A (en) * 1994-12-22 1996-04-16 Eastman Kodak Company Photographic color developers containing odorless antioxidants formed in situ from reaction of hydroxylamine and epoxide and use of same

Also Published As

Publication number Publication date
CA258966A (en) 1926-03-16
US1663959A (en) 1928-03-27
GB255925A (en) 1926-07-26

Similar Documents

Publication Publication Date Title
FR600532A (en) Improvement in the preparation of photographic developers
FR844866A (en) Photographic developers
FR804472A (en) Chromogenic developers
FR807002A (en) Photographic developers
FR592398A (en) eyeshadow case
FR662149A (en) Improvements in the preparation of photographic developers
FR804471A (en) Photographic developers
FR590859A (en) Improvements in the presentation of cinematographic reproductions
FR38219E (en) Photographic developers
FR590559A (en) Improvements to enlarged photographic proofs
FR641409A (en) Photographic developers
FR35793E (en) Photographic developers
FR28631E (en) Improvements to the projection of cinematographic images
FR558258A (en) Improvement in the preparation of photographic films
FR594638A (en) Improvements in the manufacture of photographic papers
FR580351A (en) Images giving the illusion of relief
FR28968E (en) Cinematograph
FR819754A (en) Photographic developers
ES93410A1 (en) Improvements introduced in the preparation of photographic developers.
FR647137A (en) Improvements to photographic reproductions
ES91334A1 (en) Improvements in the methods of making photographic annotations.
FR585176A (en) Improvements in the execution of photographic portraits
FR602616A (en) Improvements in the manufacture of gelatin
FR602615A (en) Improvements in the manufacture of gelatin
FR645357A (en) Cinematographic film