BE430669A - - Google Patents
Info
- Publication number
- BE430669A BE430669A BE430669DA BE430669A BE 430669 A BE430669 A BE 430669A BE 430669D A BE430669D A BE 430669DA BE 430669 A BE430669 A BE 430669A
- 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
- G03C5/3053—Tensio-active agents or sequestering agents, e.g. water-softening or wetting agents
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Inks, Pencil-Leads, Or Crayons (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DEI0059433 | 1937-10-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE430669A true BE430669A (fi) |
Family
ID=7195009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE430669D BE430669A (fi) | 1937-10-29 |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US2172216A (fi) |
| BE (1) | BE430669A (fi) |
| FR (1) | FR844866A (fi) |
| GB (1) | GB520753A (fi) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2517111A (en) * | 1946-11-14 | 1950-08-01 | Jahoda Edward | Light-sensitive blueprint layer and process of producing the same |
| US2541470A (en) * | 1947-05-28 | 1951-02-13 | Eastman Kodak Co | Photographic silver halide developing solutions containing calcium precipitation inhibitors |
| US2657138A (en) * | 1950-01-03 | 1953-10-27 | Leonard A Robbins | Photographic film developing composition containing beta, beta'-di-chloroethyl ether |
| US2666700A (en) * | 1950-09-06 | 1954-01-19 | Du Pont | Process of preparing a light sensitive silver halide emulsion |
| US2860978A (en) * | 1954-04-01 | 1958-11-18 | Eastman Kodak Co | Photographic washing accelerators |
| US2979406A (en) * | 1956-04-11 | 1961-04-11 | Gen Aniline & Film Corp | Single powder photographic developers |
| US4340665A (en) * | 1981-03-04 | 1982-07-20 | E. I. Du Pont De Nemours And Company | Silver halide film |
| US4816384A (en) * | 1986-10-09 | 1989-03-28 | E. I. Du Pont De Nemours And Company | Powdered packaged developer |
-
0
- BE BE430669D patent/BE430669A/xx unknown
-
1938
- 1938-10-17 FR FR844866D patent/FR844866A/fr not_active Expired
- 1938-10-27 US US237281A patent/US2172216A/en not_active Expired - Lifetime
- 1938-10-31 GB GB31432/38A patent/GB520753A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| US2172216A (en) | 1939-09-05 |
| GB520753A (en) | 1940-05-02 |
| FR844866A (fr) | 1939-08-03 |