JPS4831333B1 - - Google Patents
Info
- Publication number
- JPS4831333B1 JPS4831333B1 JP44073888A JP7388869A JPS4831333B1 JP S4831333 B1 JPS4831333 B1 JP S4831333B1 JP 44073888 A JP44073888 A JP 44073888A JP 7388869 A JP7388869 A JP 7388869A JP S4831333 B1 JPS4831333 B1 JP S4831333B1
- Authority
- JP
- Japan
- 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.)
- Pending
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
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09B—EDUCATIONAL OR DEMONSTRATION APPLIANCES; APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND, DEAF OR MUTE; MODELS; PLANETARIA; GLOBES; MAPS; DIAGRAMS
- G09B5/00—Electrically-operated educational appliances
- G09B5/02—Electrically-operated educational appliances with visual presentation of the material to be studied, e.g. using film strip
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- General Physics & Mathematics (AREA)
- Business, Economics & Management (AREA)
- Educational Administration (AREA)
- Educational Technology (AREA)
- Theoretical Computer Science (AREA)
- Projection Apparatus (AREA)
- Control Of Position Or Direction (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US57421866A | 1966-08-22 | 1966-08-22 |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS4831333B1 true JPS4831333B1 (ja) | 1973-09-28 |
Family
ID=24295189
Family Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP44073889A Pending JPS4822204B1 (ja) | 1966-08-22 | 1969-09-17 | |
JP44073888A Pending JPS4831333B1 (ja) | 1966-08-22 | 1969-09-17 |
Family Applications Before (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP44073889A Pending JPS4822204B1 (ja) | 1966-08-22 | 1969-09-17 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3528733A (ja) |
JP (2) | JPS4822204B1 (ja) |
GB (1) | GB1199327A (ja) |
Families Citing this family (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4455066A (en) * | 1979-12-10 | 1984-06-19 | Logicon, Inc. | Transport for display terminal |
US5088256A (en) * | 1990-08-06 | 1992-02-18 | Face Construction Technologies, Inc. | Concrete joint with spring clip retained insert and bottom seal |
US5340108A (en) * | 1991-11-22 | 1994-08-23 | Donald A. Wilson | Apparatus for projecting and moving a spot of light in a scene projected on a screen and for controlling operation of a stepper motor used therewith |
US5707128A (en) * | 1996-06-24 | 1998-01-13 | Hughes Electronics | Target projector automated alignment system |
TWI381241B (zh) * | 2008-07-11 | 2013-01-01 | Aixin Technologies Llc | 投影幕裝置 |
US9416959B2 (en) | 2012-05-17 | 2016-08-16 | Donald Spinner | Illuminated golf |
CN113178124B (zh) * | 2021-05-08 | 2023-01-31 | 河南工程学院 | 一种视觉传达教学设备 |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2192987A (en) * | 1935-11-12 | 1940-03-12 | Rca Corp | Motion picture framing device |
US2563892A (en) * | 1946-12-14 | 1951-08-14 | Waller Fred | Apparatus for locating images on screens |
US2472143A (en) * | 1947-03-10 | 1949-06-07 | Revere Camera Co | Self-threading device for motionpicture apparatus |
US2653508A (en) * | 1949-02-07 | 1953-09-29 | Whiteley Fred Howard | Intermittent feed mechanism utilizing control markings on film |
US2807188A (en) * | 1954-01-13 | 1957-09-24 | Gerald J Badgley | Motion picture apparatus having film magazine and loop forming means |
GB1048048A (en) * | 1962-11-20 | 1966-11-09 | Rank Organisation Ltd | Improvements in or relating to data processing apparatus |
US3354776A (en) * | 1964-11-20 | 1967-11-28 | Bell & Howell Co | Microfilm reader |
-
1966
- 1966-08-22 US US574218A patent/US3528733A/en not_active Expired - Lifetime
-
1967
- 1967-08-15 GB GB37390/67A patent/GB1199327A/en not_active Expired
-
1969
- 1969-09-17 JP JP44073889A patent/JPS4822204B1/ja active Pending
- 1969-09-17 JP JP44073888A patent/JPS4831333B1/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
GB1199327A (en) | 1970-07-22 |
JPS4822204B1 (ja) | 1973-07-04 |
US3528733A (en) | 1970-09-15 |