CH386844A - Dispositivo per la produzione di copie positive da negativo, con il procedimento di diffusione al sale d'argento - Google Patents
Dispositivo per la produzione di copie positive da negativo, con il procedimento di diffusione al sale d'argentoInfo
- Publication number
- CH386844A CH386844A CH1393461A CH1393461A CH386844A CH 386844 A CH386844 A CH 386844A CH 1393461 A CH1393461 A CH 1393461A CH 1393461 A CH1393461 A CH 1393461A CH 386844 A CH386844 A CH 386844A
- Authority
- CH
- Switzerland
- Prior art keywords
- negative
- production
- silver salt
- diffusion process
- salt diffusion
- Prior art date
Links
- 238000009792 diffusion process Methods 0.000 title 1
- 238000004519 manufacturing process Methods 0.000 title 1
- GGCZERPQGJTIQP-UHFFFAOYSA-N sodium;9,10-dioxoanthracene-2-sulfonic acid Chemical compound [Na+].C1=CC=C2C(=O)C3=CC(S(=O)(=O)O)=CC=C3C(=O)C2=C1 GGCZERPQGJTIQP-UHFFFAOYSA-N 0.000 title 1
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
- G03D9/00—Diffusion development apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Photographic Processing Devices Using Wet Methods (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| IT2193060 | 1960-12-21 | ||
| IT680461 | 1961-04-12 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH386844A true CH386844A (it) | 1965-01-15 |
Family
ID=26325822
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1393461A CH386844A (it) | 1960-12-21 | 1961-11-30 | Dispositivo per la produzione di copie positive da negativo, con il procedimento di diffusione al sale d'argento |
Country Status (2)
| Country | Link |
|---|---|
| CH (1) | CH386844A (it) |
| GB (1) | GB993565A (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DK161546C (da) * | 1986-04-28 | 1992-01-13 | Eskofot As | Fremkalderskaal |
-
1961
- 1961-11-28 GB GB4258461A patent/GB993565A/en not_active Expired
- 1961-11-30 CH CH1393461A patent/CH386844A/it unknown
Also Published As
| Publication number | Publication date |
|---|---|
| GB993565A (en) | 1965-05-26 |
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