FR761510A - écran de projection - Google Patents
écran de projectionInfo
- Publication number
- FR761510A FR761510A FR761510DA FR761510A FR 761510 A FR761510 A FR 761510A FR 761510D A FR761510D A FR 761510DA FR 761510 A FR761510 A FR 761510A
- Authority
- FR
- France
- Prior art keywords
- projection screen
- projection
- screen
- 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
- G03B21/54—Accessories
- G03B21/56—Projection screens
- G03B21/58—Projection screens collapsible, e.g. foldable; of variable area
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR761510T | 1933-10-03 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR761510A true FR761510A (fr) | 1934-03-21 |
Family
ID=9173343
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR761510D Expired FR761510A (fr) | 1933-10-03 | 1933-10-03 | écran de projection |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR761510A (fr) |
-
1933
- 1933-10-03 FR FR761510D patent/FR761510A/fr not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR761510A (fr) | écran de projection | |
FR751840A (fr) | écran de projection | |
FR44054E (fr) | Projecteur | |
FR749549A (fr) | Projecteur perfectionné | |
FR752105A (fr) | Projecteur perfectionné | |
FR812076A (fr) | écran de projection | |
FR746022A (fr) | Ecran de projection | |
FR765479A (fr) | écran de projection | |
FR818965A (fr) | Ecran de projection | |
FR746991A (fr) | Crible | |
FI15300A (fi) | Vaaka | |
FR753811A (fr) | Projecteur non éblouissant | |
FR779112A (fr) | écran pour projections cinématographiques | |
FI15051A (fi) | Blixtlås | |
FI15025A (fi) | Planetväxel | |
FI14919A (fi) | Eldstadsrost | |
FI15192A (fi) | Stångkvarn | |
FI15181A (fi) | Barkningsmaskin | |
FI15164A (fi) | Stickkontaktanordning | |
FI15158A (fi) | Vattenståndsvisare | |
FI15153A (fi) | Kortsystem | |
FI15151A (fi) | Strömningsmaskin | |
FI15138A (fi) | Bordsspel | |
FI15137A (fi) | Suksiside | |
FI15135A (fi) | Skidsmörja |