CH590487A5 - - Google Patents
Info
- Publication number
- CH590487A5 CH590487A5 CH1219575A CH1219575A CH590487A5 CH 590487 A5 CH590487 A5 CH 590487A5 CH 1219575 A CH1219575 A CH 1219575A CH 1219575 A CH1219575 A CH 1219575A CH 590487 A5 CH590487 A5 CH 590487A5
- Authority
- CH
- Switzerland
Links
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B27/00—Optical systems or apparatus not provided for by any of the groups G02B1/00 - G02B26/00, G02B30/00
- G02B27/02—Viewing or reading apparatus
- G02B27/022—Viewing apparatus
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Replacement Of Web Rolls (AREA)
- Storage Of Web-Like Or Filamentary Materials (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE19742445996 DE2445996A1 (de) | 1974-09-26 | 1974-09-26 | Betrachtungstisch fuer baender mit fotografischen kopien |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH590487A5 true CH590487A5 (forum.php) | 1977-08-15 |
Family
ID=5926805
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1219575A CH590487A5 (forum.php) | 1974-09-26 | 1975-09-19 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US3964191A (forum.php) |
| CH (1) | CH590487A5 (forum.php) |
| DE (1) | DE2445996A1 (forum.php) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4025198A (en) * | 1976-03-17 | 1977-05-24 | Hutchins Thomas B | Opposite-sides object inspection system |
| CN103236203B (zh) * | 2013-02-17 | 2015-07-29 | 山东华宇工学院 | 采用背词典学外语法的专用字卷 |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2002867A (en) * | 1935-05-28 | Viewing cabinet | ||
| GB372194A (en) * | 1930-10-22 | 1932-05-05 | Alphonse Roux | Improvements in advertising and like apparatus |
| US2539676A (en) * | 1947-02-14 | 1951-01-30 | George C Sontag | Photograph exhibitor |
| US2635371A (en) * | 1948-06-29 | 1953-04-21 | Mazzocco Leandro | Viewing device for positive photographic prints |
| US3522982A (en) * | 1965-08-18 | 1970-08-04 | Bohn Benton Inc | Collapsible screen assembly for portable motion picture projector |
-
1974
- 1974-09-26 DE DE19742445996 patent/DE2445996A1/de active Pending
-
1975
- 1975-09-19 CH CH1219575A patent/CH590487A5/xx not_active IP Right Cessation
- 1975-09-24 US US05/616,412 patent/US3964191A/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| DE2445996A1 (de) | 1976-04-08 |
| US3964191A (en) | 1976-06-22 |
Similar Documents
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PL | Patent ceased | ||
| PL | Patent ceased |