BE425342A - - Google Patents
Info
- Publication number
- BE425342A BE425342A BE425342DA BE425342A BE 425342 A BE425342 A BE 425342A BE 425342D A BE425342D A BE 425342DA BE 425342 A BE425342 A BE 425342A
- 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
- G03C5/00—Photographic processes or agents therefor; Regeneration of such processing agents
- G03C5/26—Processes using silver-salt-containing photosensitive materials or agents therefor
- G03C5/29—Development processes or agents therefor
- G03C5/305—Additives other than developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Pyridine Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE494468X | 1936-12-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE425342A true BE425342A (https=) |
Family
ID=6544720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE425342D BE425342A (https=) | 1936-12-21 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2192891A (https=) |
| BE (1) | BE425342A (https=) |
| FR (1) | FR830985A (https=) |
| GB (1) | GB494468A (https=) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2465678A (en) * | 1947-03-19 | 1949-03-29 | Donald B Ellig | Machine for sharpening knife blades |
| US2476541A (en) * | 1947-11-18 | 1949-07-19 | Gen Aniline & Film Corp | Process for producing multilayer color negatives containing masking images for colorcorrection purposes |
| US2983605A (en) * | 1955-01-31 | 1961-05-09 | Polaroid Corp | Photographic products, processes, and compositions |
-
0
- BE BE425342D patent/BE425342A/xx unknown
-
1937
- 1937-12-20 FR FR830985D patent/FR830985A/fr not_active Expired
- 1937-12-21 GB GB35430/37A patent/GB494468A/en not_active Expired
-
1938
- 1938-01-08 US US184037A patent/US2192891A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| US2192891A (en) | 1940-03-12 |
| GB494468A (en) | 1938-10-26 |
| FR830985A (fr) | 1938-08-16 |