BE522910A - - Google Patents
Info
- Publication number
- BE522910A BE522910A BE522910DA BE522910A BE 522910 A BE522910 A BE 522910A BE 522910D A BE522910D A BE 522910DA BE 522910 A BE522910 A BE 522910A
- Authority
- BE
- Belgium
Links
Classifications
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH DRILLING; MINING
- E21B—EARTH DRILLING, e.g. DEEP DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/11—Perforators; Permeators
- E21B43/116—Gun or shaped-charge perforators
- E21B43/117—Shaped-charge perforators
-
- 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
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/42—Structural details
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US31045652 US2698243A (en) | 1952-09-19 | 1952-09-19 | Photographic product |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE522910A true BE522910A (xx) | 1954-03-19 |
Family
ID=82116073
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE522910D BE522910A (xx) | 1952-09-19 | 1953-09-19 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US2698243A (xx) |
| BE (1) | BE522910A (xx) |
| DE (1) | DE948384C (xx) |
| FR (1) | FR1087538A (xx) |
| GB (1) | GB737435A (xx) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3342600A (en) * | 1963-07-25 | 1967-09-19 | Polaroid Corp | Photographic film unit |
| US3455692A (en) * | 1965-01-08 | 1969-07-15 | Polaroid Corp | Composite photographic film roll |
| NL134364C (xx) * | 1965-02-04 | |||
| US3619193A (en) * | 1968-12-30 | 1971-11-09 | Polaroid Corp | Photographic film unit |
| US4677046A (en) * | 1984-12-12 | 1987-06-30 | Fuji Photo Film Co., Ltd. | Instant photographic method and apparatus |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2563387A (en) * | 1951-08-07 | Photographic image receiving sheet | ||
| US2612452A (en) * | 1948-11-02 | 1952-09-30 | Polaroid Corp | Photographic product |
| US2565367A (en) * | 1949-11-23 | 1951-08-21 | Polaroid Corp | Method for forming image-receiving film for use in photography |
-
1952
- 1952-09-19 US US31045652 patent/US2698243A/en not_active Expired - Lifetime
-
1953
- 1953-09-18 GB GB25811/53A patent/GB737435A/en not_active Expired
- 1953-09-19 FR FR1087538D patent/FR1087538A/fr not_active Expired
- 1953-09-19 BE BE522910D patent/BE522910A/fr unknown
- 1953-09-20 DE DEI7714A patent/DE948384C/de not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| DE948384C (de) | 1956-08-30 |
| FR1087538A (fr) | 1955-02-24 |
| US2698243A (en) | 1954-12-28 |
| GB737435A (en) | 1955-09-28 |