FR758239A - - Google Patents
Info
- Publication number
- FR758239A FR758239A FR758239DA FR758239A FR 758239 A FR758239 A FR 758239A FR 758239D A FR758239D A FR 758239DA FR 758239 A FR758239 A FR 758239A
- Authority
- FR
- France
- 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
- G03B23/00—Devices for changing pictures in viewing apparatus or projectors
- G03B23/08—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier
- G03B23/10—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier
- G03B23/105—Devices for changing pictures in viewing apparatus or projectors in which pictures are attached to a movable carrier drum or disc carrier disc carriers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR758239A true FR758239A (en) | 1934-01-12 |
Family
ID=1550902
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR758239D Expired FR758239A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR758239A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757877C (en) * | 1940-01-09 | 1953-03-23 | Friedrich Deckel Praez S Mecha | Image throwing device for workshop measurements, especially for performing serial measurements |
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0
- FR FR758239D patent/FR758239A/fr not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE757877C (en) * | 1940-01-09 | 1953-03-23 | Friedrich Deckel Praez S Mecha | Image throwing device for workshop measurements, especially for performing serial measurements |