FR727100A - Jumelle - Google Patents
JumelleInfo
- Publication number
- FR727100A FR727100A FR727100DA FR727100A FR 727100 A FR727100 A FR 727100A FR 727100D A FR727100D A FR 727100DA FR 727100 A FR727100 A FR 727100A
- Authority
- FR
- France
- Prior art keywords
- twin
- 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
- G02B23/02—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors
- G02B23/06—Telescopes, e.g. binoculars; Periscopes; Instruments for viewing the inside of hollow bodies; Viewfinders; Optical aiming or sighting devices involving prisms or mirrors having a focussing action, e.g. parabolic mirror
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 |
|---|---|---|---|
| FR727100T | 1931-02-05 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR727100A true FR727100A (fr) | 1932-06-13 |
Family
ID=9111093
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR727100D Expired FR727100A (fr) | 1931-02-05 | 1931-02-05 | Jumelle |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR727100A (fr) |
-
1931
- 1931-02-05 FR FR727100D patent/FR727100A/fr not_active Expired
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