FR564040A - Perfectionnements apportés aux appareils portatifs de projection de vues - Google Patents
Perfectionnements apportés aux appareils portatifs de projection de vuesInfo
- Publication number
- FR564040A FR564040A FR564040DA FR564040A FR 564040 A FR564040 A FR 564040A FR 564040D A FR564040D A FR 564040DA FR 564040 A FR564040 A FR 564040A
- Authority
- FR
- France
- Prior art keywords
- projection devices
- view projection
- portable view
- portable
- devices
- 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
- G03B21/14—Details
- G03B21/30—Details adapted to collapse or fold, e.g. for portability
-
- 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
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
BE564040X | 1922-03-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR564040A true FR564040A (fr) | 1923-12-19 |
Family
ID=3872847
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR564040D Expired FR564040A (fr) | 1922-03-18 | 1923-03-17 | Perfectionnements apportés aux appareils portatifs de projection de vues |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR564040A (fr) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1036634B (de) * | 1953-07-22 | 1958-08-14 | Kalart Co Inc | Betrachtungsgeraet fuer Kinofilme in Kofferform |
US3134299A (en) * | 1961-09-15 | 1964-05-26 | Ralph G Allen | Projection screen device with vertically adjustable detachable legs |
EP1659446A1 (fr) * | 2000-09-07 | 2006-05-24 | Guy Spencer Edney | Unité de projection |
-
1923
- 1923-03-17 FR FR564040D patent/FR564040A/fr not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1036634B (de) * | 1953-07-22 | 1958-08-14 | Kalart Co Inc | Betrachtungsgeraet fuer Kinofilme in Kofferform |
US3134299A (en) * | 1961-09-15 | 1964-05-26 | Ralph G Allen | Projection screen device with vertically adjustable detachable legs |
EP1659446A1 (fr) * | 2000-09-07 | 2006-05-24 | Guy Spencer Edney | Unité de projection |
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