BE420187A - - Google Patents
Info
- Publication number
- BE420187A BE420187A BE420187DA BE420187A BE 420187 A BE420187 A BE 420187A BE 420187D A BE420187D A BE 420187DA BE 420187 A BE420187 A BE 420187A
- 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
- G03C7/32—Colour coupling substances
- G03C7/36—Couplers containing compounds with active methylene groups
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE201643X | 1936-02-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE420187A true BE420187A (fr) |
Family
ID=5767278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE420187D BE420187A (fr) | 1936-02-27 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2186850A (fr) |
| BE (1) | BE420187A (fr) |
| CH (1) | CH201643A (fr) |
| FR (1) | FR818388A (fr) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2433632A (en) * | 1942-12-23 | 1947-12-30 | Rca Corp | Fibrous sheet material for the electrolytic formation of azo dye image records thereon |
| US2440526A (en) * | 1942-12-23 | 1948-04-27 | Nellie W Solomon | Fibrous sheet material for the electrolytic formation of an azo dyestuff thereon |
| JPS4817890B1 (fr) * | 1969-07-16 | 1973-06-01 |
-
0
- BE BE420187D patent/BE420187A/xx unknown
-
1937
- 1937-02-20 US US126842A patent/US2186850A/en not_active Expired - Lifetime
- 1937-02-24 CH CH201643D patent/CH201643A/de unknown
- 1937-02-25 FR FR818388D patent/FR818388A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2186850A (en) | 1940-01-09 |
| FR818388A (fr) | 1937-09-24 |
| CH201643A (de) | 1938-12-15 |