BE728899A - - Google Patents
Info
- Publication number
- BE728899A BE728899A BE728899DA BE728899A BE 728899 A BE728899 A BE 728899A BE 728899D A BE728899D A BE 728899DA BE 728899 A BE728899 A BE 728899A
- Authority
- BE
- Belgium
Links
Classifications
-
- G—PHYSICS
- G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
- G03B—APPARATUS OR ARRANGEMENTS FOR TAKING PHOTOGRAPHS OR FOR PROJECTING OR VIEWING THEM; APPARATUS OR ARRANGEMENTS EMPLOYING ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ACCESSORIES THEREFOR
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/14—Details
- G03B21/32—Details specially adapted for motion-picture projection
- G03B21/321—Holders for films, e.g. reels, cassettes, spindles
- G03B21/323—Cassettes
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US70829368A | 1968-02-26 | 1968-02-26 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| BE728899A true BE728899A (xx) | 1969-08-01 |
Family
ID=24845214
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| BE728899D BE728899A (xx) | 1968-02-26 | 1969-02-25 |
Country Status (4)
| Country | Link |
|---|---|
| BE (1) | BE728899A (xx) |
| DE (3) | DE6907418U (xx) |
| FR (1) | FR2002637A1 (xx) |
| GB (1) | GB1262108A (xx) |
-
1969
- 1969-02-21 GB GB955169A patent/GB1262108A/en not_active Expired
- 1969-02-25 DE DE19696907418 patent/DE6907418U/de not_active Expired
- 1969-02-25 DE DE19696929007 patent/DE6929007U/de not_active Expired
- 1969-02-25 DE DE19691909396 patent/DE1909396B2/de active Pending
- 1969-02-25 BE BE728899D patent/BE728899A/xx unknown
- 1969-02-26 FR FR6904957A patent/FR2002637A1/fr not_active Withdrawn
Also Published As
| Publication number | Publication date |
|---|---|
| GB1262108A (en) | 1972-02-02 |
| FR2002637A1 (xx) | 1969-10-31 |
| DE1909396B2 (de) | 1971-10-07 |
| DE1909396A1 (de) | 1970-03-19 |
| DE6929007U (de) | 1969-11-27 |
| DE6907418U (de) | 1969-11-27 |