BE424255A - - Google Patents
Info
- Publication number
- BE424255A BE424255A BE424255DA BE424255A BE 424255 A BE424255 A BE 424255A BE 424255D A BE424255D A BE 424255DA BE 424255 A BE424255 A BE 424255A
- 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
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
- G03C1/8155—Organic compounds therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Compositions Of Macromolecular Compounds (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI0056223 | 1936-10-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE424255A true BE424255A (en:Method) | 1937-11-30 |
Family
ID=1553817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE424255D BE424255A (en:Method) | 1936-10-27 | 1937-10-25 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE424255A (en:Method) |
| CH (1) | CH204254A (en:Method) |
| FR (1) | FR828279A (en:Method) |
-
1937
- 1937-10-25 CH CH204254D patent/CH204254A/de unknown
- 1937-10-25 BE BE424255D patent/BE424255A/xx unknown
- 1937-10-25 FR FR828279D patent/FR828279A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR828279A (fr) | 1938-05-13 |
| CH204254A (de) | 1939-04-30 |