BE391977A - - Google Patents
Info
- Publication number
- BE391977A BE391977A BE391977DA BE391977A BE 391977 A BE391977 A BE 391977A BE 391977D A BE391977D A BE 391977DA BE 391977 A BE391977 A BE 391977A
- Authority
- BE
- Belgium
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
- C02F5/00—Softening water; Preventing scale; Adding scale preventatives or scale removers to water, e.g. adding sequestering agents
- C02F5/02—Softening water by precipitation of the hardness
-
- 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
- G03C11/00—Auxiliary processes in photography
- G03C11/06—Smoothing; Renovating; Roughening; Matting; Cleaning; Lubricating; Flame-retardant treatments
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Engineering & Computer Science (AREA)
- Environmental & Geological Engineering (AREA)
- Water Supply & Treatment (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR744313T | |||
| US393465XA | 1931-10-31 | 1931-10-31 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE391977A true BE391977A (it) |
Family
ID=78669013
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE391977D BE391977A (it) | 1931-10-31 |
Country Status (3)
| Country | Link |
|---|---|
| BE (1) | BE391977A (it) |
| FR (1) | FR744313A (it) |
| GB (1) | GB393465A (it) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE749969C (de) * | 1937-11-28 | 1944-12-12 | Felix Anthony | Benetzungsfluessigkeit fuer Filme |
-
0
- FR FR744313D patent/FR744313A/fr not_active Expired
- BE BE391977D patent/BE391977A/xx unknown
-
1932
- 1932-10-13 GB GB28557/32A patent/GB393465A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB393465A (en) | 1933-06-08 |
| FR744313A (it) | 1933-04-14 |