CH520343A - Filmprojektor - Google Patents
FilmprojektorInfo
- Publication number
- CH520343A CH520343A CH1890170A CH1890170A CH520343A CH 520343 A CH520343 A CH 520343A CH 1890170 A CH1890170 A CH 1890170A CH 1890170 A CH1890170 A CH 1890170A CH 520343 A CH520343 A CH 520343A
- Authority
- CH
- Switzerland
- Prior art keywords
- movie projector
- movie
- projector
- Prior art date
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
- G03B19/00—Cameras
- G03B19/18—Motion-picture cameras
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Projection Apparatus (AREA)
- Instructional Devices (AREA)
- Overhead Projectors And Projection Screens (AREA)
- Control Of Ac Motors In General (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US88873669A | 1969-12-29 | 1969-12-29 |
Publications (1)
Publication Number | Publication Date |
---|---|
CH520343A true CH520343A (de) | 1972-03-15 |
Family
ID=25393784
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH1890170A CH520343A (de) | 1969-12-29 | 1970-12-21 | Filmprojektor |
Country Status (7)
Country | Link |
---|---|
US (1) | US3611084A (de) |
AU (1) | AU2347070A (de) |
BE (1) | BE760888A (de) |
CH (1) | CH520343A (de) |
DE (1) | DE2063683B2 (de) |
FR (1) | FR2072087B1 (de) |
GB (1) | GB1278390A (de) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AT332485B (de) * | 1974-01-14 | 1976-09-27 | Siemens Ag | Bezuglich der betriebsfrequenz von 50 auf 60 hz umstellbare elektrische synchronmaschine |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2466900A (en) * | 1947-03-13 | 1949-04-12 | Knapp Monarch Co | Two-voltage shaver motor |
US2543131A (en) * | 1947-03-18 | 1951-02-27 | Century Electric Company | Dynamoelectric machine |
US2613343A (en) * | 1949-02-01 | 1952-10-07 | Robbins & Myers | Plural voltage motor |
US3140637A (en) * | 1960-07-01 | 1964-07-14 | Leitz Ernst Gmbh | Motion picture projector operable on different a. c. sources |
-
1969
- 1969-12-29 US US3611084D patent/US3611084A/en not_active Expired - Lifetime
-
1970
- 1970-12-15 GB GB5945070A patent/GB1278390A/en not_active Expired
- 1970-12-16 FR FR7045345A patent/FR2072087B1/fr not_active Expired
- 1970-12-16 AU AU23470/70A patent/AU2347070A/en not_active Expired
- 1970-12-21 CH CH1890170A patent/CH520343A/de not_active IP Right Cessation
- 1970-12-24 DE DE19702063683 patent/DE2063683B2/de active Pending
- 1970-12-28 BE BE760888A patent/BE760888A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE760888A (fr) | 1971-05-27 |
DE2063683B2 (de) | 1973-05-30 |
FR2072087B1 (de) | 1973-02-02 |
FR2072087A1 (de) | 1971-09-24 |
US3611084A (en) | 1971-10-05 |
GB1278390A (en) | 1972-06-21 |
AU2347070A (en) | 1972-06-22 |
DE2063683A1 (de) | 1971-07-08 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PL | Patent ceased |