FR2102023A5 - - Google Patents
Info
- Publication number
- FR2102023A5 FR2102023A5 FR7130551A FR7130551A FR2102023A5 FR 2102023 A5 FR2102023 A5 FR 2102023A5 FR 7130551 A FR7130551 A FR 7130551A FR 7130551 A FR7130551 A FR 7130551A FR 2102023 A5 FR2102023 A5 FR 2102023A5
- 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
- G03B21/00—Projectors or projection-type viewers; Accessories therefor
- G03B21/10—Projectors with built-in or built-on screen
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4070070 | 1970-08-24 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR2102023A5 true FR2102023A5 (fr) | 1972-03-31 |
Family
ID=10416191
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7130551A Expired FR2102023A5 (fr) | 1970-08-24 | 1971-08-23 |
Country Status (3)
Country | Link |
---|---|
US (1) | US3739069A (fr) |
DE (1) | DE2141524A1 (fr) |
FR (1) | FR2102023A5 (fr) |
Families Citing this family (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3914037A (en) * | 1971-08-26 | 1975-10-21 | Gelatt Investments Inc | Lap model microfilm viewer |
CH574619A5 (fr) * | 1973-01-25 | 1976-04-15 | Lamip Di Aruanno A | |
US4185899A (en) * | 1973-10-29 | 1980-01-29 | Action Films, Inc. | Combination viewer and projector |
US3968575A (en) * | 1975-04-02 | 1976-07-13 | Marlin Van Wilson | Teaching device |
US4174889A (en) * | 1977-10-31 | 1979-11-20 | Northern Engraving Company | Travel monitor |
US4203657A (en) * | 1977-12-19 | 1980-05-20 | Northern Engraving Company | Micro image cassette and viewer |
US4270850A (en) * | 1977-12-19 | 1981-06-02 | Realist, Inc. | Microimage storage and retrieval apparatus |
US4203658A (en) * | 1977-12-19 | 1980-05-20 | Northern Engraving Company | Micro image storage and retrieval apparatus |
US4167822A (en) * | 1978-01-23 | 1979-09-18 | Marvin Glass & Associates | Driving toy projector |
DE3071602D1 (en) * | 1980-10-16 | 1986-06-19 | Dominique Ausseil | Projection apparatus for viewing microfilm cassettes |
US4693694A (en) * | 1983-12-10 | 1987-09-15 | Tomy Kogyo Co., Inc. | Toy with moving screen |
US4573928A (en) * | 1984-10-26 | 1986-03-04 | Tomy Kogyo Co., Inc. | Teaching toy |
TWM329192U (en) * | 2007-08-09 | 2008-03-21 | Tirid Tech Co Ltd | Interactive projection apparatus |
-
1971
- 1971-08-13 US US00171533A patent/US3739069A/en not_active Expired - Lifetime
- 1971-08-19 DE DE19712141524 patent/DE2141524A1/de active Pending
- 1971-08-23 FR FR7130551A patent/FR2102023A5/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3739069A (en) | 1973-06-12 |
DE2141524A1 (de) | 1972-03-02 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |