FR653549A - Périscope - Google Patents
PériscopeInfo
- Publication number
- FR653549A FR653549A FR653549DA FR653549A FR 653549 A FR653549 A FR 653549A FR 653549D A FR653549D A FR 653549DA FR 653549 A FR653549 A FR 653549A
- Authority
- FR
- France
- Prior art keywords
- periscope
- 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
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B23/00—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR653549T | 1928-04-28 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR653549A true FR653549A (fr) | 1929-03-22 |
Family
ID=9005930
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR653549D Expired FR653549A (fr) | 1928-04-28 | 1928-04-28 | Périscope |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR653549A (fr) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3014408A (en) * | 1958-06-04 | 1961-12-26 | Jr Harold F Miller | Collapsible carton periscope |
US3357777A (en) * | 1963-07-30 | 1967-12-12 | Kallio Laurie | Portable periscope for viewing public events |
-
1928
- 1928-04-28 FR FR653549D patent/FR653549A/fr not_active Expired
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3014408A (en) * | 1958-06-04 | 1961-12-26 | Jr Harold F Miller | Collapsible carton periscope |
US3357777A (en) * | 1963-07-30 | 1967-12-12 | Kallio Laurie | Portable periscope for viewing public events |
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