BE421135A - - Google Patents
Info
- Publication number
- BE421135A BE421135A BE421135DA BE421135A BE 421135 A BE421135 A BE 421135A BE 421135D A BE421135D A BE 421135DA BE 421135 A BE421135 A BE 421135A
- Authority
- BE
- Belgium
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
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
- G03C7/4136—Developers p-Phenylenediamine or derivatives thereof
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Indole Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI0054850 | 1936-04-23 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE421135A true BE421135A (de) |
Family
ID=7193989
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE421135D BE421135A (de) | 1936-04-23 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2163820A (de) |
| BE (1) | BE421135A (de) |
| FR (1) | FR820865A (de) |
| GB (1) | GB478345A (de) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2596978A (en) * | 1947-09-17 | 1952-05-20 | Searle & Co | 8-hydroxy-1, 2, 3, 4-tetrahydroquinoline as a silver halide developer |
| US2566259A (en) * | 1948-09-25 | 1951-08-28 | Eastman Kodak Co | 8-alkyl sulfonamidoethyl-n-substituted saturated heterocyclic developers |
| FR2257580B1 (de) * | 1974-01-10 | 1977-06-10 | Kodak Pathe | |
| US4845019A (en) * | 1986-06-06 | 1989-07-04 | Visicon Laboratories, Inc. | Method for exposing and developing photosensitive materials |
-
0
- BE BE421135D patent/BE421135A/xx unknown
-
1936
- 1936-05-11 GB GB13279/36A patent/GB478345A/en not_active Expired
-
1937
- 1937-03-19 US US131780A patent/US2163820A/en not_active Expired - Lifetime
- 1937-04-20 FR FR820865D patent/FR820865A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB478345A (en) | 1938-01-11 |
| US2163820A (en) | 1939-06-27 |
| FR820865A (fr) | 1937-11-20 |