GB451030A - Improvements in photographic developers - Google Patents
Improvements in photographic developersInfo
- Publication number
- GB451030A GB451030A GB2766/35A GB276635A GB451030A GB 451030 A GB451030 A GB 451030A GB 2766/35 A GB2766/35 A GB 2766/35A GB 276635 A GB276635 A GB 276635A GB 451030 A GB451030 A GB 451030A
- Authority
- GB
- United Kingdom
- Prior art keywords
- ethylene diamine
- bromide
- potassium
- metol
- hydroquinone
- 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
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
- G03C5/50—Reversal development; Contact processes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE2124608X | 1934-10-27 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB451030A true GB451030A (en) | 1936-07-28 |
Family
ID=32044201
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2766/35A Expired GB451030A (en) | 1934-10-27 | 1935-01-28 | Improvements in photographic developers |
Country Status (5)
Country | Link |
---|---|
US (1) | US2124608A (fr) |
BE (1) | BE411667A (fr) |
ES (1) | ES139752A1 (fr) |
FR (1) | FR796015A (fr) |
GB (1) | GB451030A (fr) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB565146A (en) * | 1943-06-23 | 1944-10-27 | Eastman Kodak Co | Improvements relating to photographic fixing solutions |
US2466423A (en) * | 1945-05-11 | 1949-04-05 | Eastman Kodak Co | Fine-grain developers |
US2657138A (en) * | 1950-01-03 | 1953-10-27 | Leonard A Robbins | Photographic film developing composition containing beta, beta'-di-chloroethyl ether |
-
1935
- 1935-01-28 GB GB2766/35A patent/GB451030A/en not_active Expired
- 1935-10-05 ES ES0139752A patent/ES139752A1/es not_active Expired
- 1935-10-07 FR FR796015D patent/FR796015A/fr not_active Expired
- 1935-10-08 BE BE411667D patent/BE411667A/xx unknown
- 1935-10-23 US US46343A patent/US2124608A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
FR796015A (fr) | 1936-03-27 |
ES139752A1 (es) | 1935-12-01 |
US2124608A (en) | 1938-07-26 |
BE411667A (fr) | 1935-11-30 |
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