BE429448A - - Google Patents
Info
- Publication number
- BE429448A BE429448A BE429448DA BE429448A BE 429448 A BE429448 A BE 429448A BE 429448D A BE429448D A BE 429448DA BE 429448 A BE429448 A BE 429448A
- 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 |
|---|---|---|---|
| DEI0058706 | 1937-07-30 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE429448A true BE429448A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) |
Family
ID=7194843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE429448D BE429448A (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) | 1937-07-30 |
Country Status (4)
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2440526A (en) * | 1942-12-23 | 1948-04-27 | Nellie W Solomon | Fibrous sheet material for the electrolytic formation of an azo dyestuff thereon |
| US2433632A (en) * | 1942-12-23 | 1947-12-30 | Rca Corp | Fibrous sheet material for the electrolytic formation of azo dye image records thereon |
| US2418748A (en) * | 1944-06-07 | 1947-04-08 | Gen Aniline & Film Corp | Heterocyclic color couplers |
| US2421693A (en) * | 1944-09-16 | 1947-06-03 | Gen Aniline & Film Corp | Imidazolone color formers |
| NL62542C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html) * | 1945-08-03 | |||
| US2440954A (en) * | 1945-08-23 | 1948-05-04 | Du Pont | Process for eliminating stain from color-yielding elements by treatment with aromatic aldehydes containing an acyl group |
| US2776116A (en) * | 1953-10-29 | 1957-01-01 | Acme Highway Prod | Beam guard for highways and the like |
| DE3933238A1 (de) * | 1989-10-05 | 1991-04-11 | Agfa Gevaert Ag | Farbfotografisches aufzeichnungsmaterial mit einem dir-kuppler |
-
0
- BE BE429448D patent/BE429448A/xx unknown
-
1937
- 1937-08-24 GB GB23190/37A patent/GB504376A/en not_active Expired
-
1938
- 1938-06-28 US US216293A patent/US2154918A/en not_active Expired - Lifetime
- 1938-07-29 FR FR841425D patent/FR841425A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR841425A (fr) | 1939-05-19 |
| US2154918A (en) | 1939-04-18 |
| GB504376A (en) | 1939-04-24 |