FR39044E - Porte-radiations - Google Patents
Porte-radiationsInfo
- Publication number
- FR39044E FR39044E FR39044DA FR39044E FR 39044 E FR39044 E FR 39044E FR 39044D A FR39044D A FR 39044DA FR 39044 E FR39044 E FR 39044E
- Authority
- FR
- France
- Prior art keywords
- radiation holder
- holder
- radiation
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR39044T | 1930-09-05 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR39044E true FR39044E (fr) | 1931-08-26 |
Family
ID=8675483
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR39044D Expired FR39044E (fr) | 1930-09-05 | 1930-09-05 | Porte-radiations |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR39044E (fr) |
-
1930
- 1930-09-05 FR FR39044D patent/FR39044E/fr not_active Expired
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