BE443050A - - Google Patents
Info
- Publication number
- BE443050A BE443050A BE443050DA BE443050A BE 443050 A BE443050 A BE 443050A BE 443050D A BE443050D A BE 443050DA BE 443050 A BE443050 A BE 443050A
- 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
- G03C7/38—Couplers containing compounds with active methylene groups in rings
- G03C7/384—Couplers containing compounds with active methylene groups in rings in pyrazolone rings
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 |
|---|---|---|---|
| DEI0068059 | 1940-10-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE443050A true BE443050A (ja�@�@) |
Family
ID=7196825
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE443050D BE443050A (ja�@�@) | 1940-10-19 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2348463A (ja�@�@) |
| BE (1) | BE443050A (ja�@�@) |
| CH (1) | CH223793A (ja�@�@) |
| FR (1) | FR884055A (ja�@�@) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2710871A (en) * | 1951-12-05 | 1955-06-14 | Eastman Kodak Co | Preparation of 5-pyrazolone diamides |
-
0
- BE BE443050D patent/BE443050A/xx unknown
-
1941
- 1941-10-11 CH CH223793D patent/CH223793A/de unknown
- 1941-10-17 FR FR884055D patent/FR884055A/fr not_active Expired
-
1942
- 1942-02-17 US US431273A patent/US2348463A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2348463A (en) | 1944-05-09 |
| FR884055A (fr) | 1943-08-02 |
| CH223793A (de) | 1942-10-15 |