BE434297A - - Google Patents
Info
- Publication number
- BE434297A BE434297A BE434297DA BE434297A BE 434297 A BE434297 A BE 434297A BE 434297D A BE434297D A BE 434297DA BE 434297 A BE434297 A BE 434297A
- 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
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Colloid Chemistry (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB14068/38A GB514639A (en) | 1938-05-11 | 1938-05-11 | A process for the manufacture of photographic colloids |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE434297A true BE434297A (en:Method) |
Family
ID=10034396
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE434297D BE434297A (en:Method) | 1938-05-11 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2310228A (en:Method) |
| BE (1) | BE434297A (en:Method) |
| FR (1) | FR854532A (en:Method) |
| GB (1) | GB514639A (en:Method) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2534654A (en) * | 1946-01-11 | 1950-12-19 | Polaroid Corp | Ultraviolet absorbing filter |
| US2639290A (en) * | 1950-06-30 | 1953-05-19 | American Optical Corp | Reaction products of cupric chloride and amino hydroquinone ethers and process |
-
0
- BE BE434297D patent/BE434297A/xx unknown
-
1938
- 1938-05-11 GB GB14068/38A patent/GB514639A/en not_active Expired
-
1939
- 1939-04-14 US US267905A patent/US2310228A/en not_active Expired - Lifetime
- 1939-05-10 FR FR854532D patent/FR854532A/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| FR854532A (fr) | 1940-04-17 |
| GB514639A (en) | 1939-11-14 |
| US2310228A (en) | 1943-02-09 |