FR1005518A - - Google Patents
Info
- Publication number
- FR1005518A FR1005518A FR1005518DA FR1005518A FR 1005518 A FR1005518 A FR 1005518A FR 1005518D A FR1005518D A FR 1005518DA FR 1005518 A FR1005518 A FR 1005518A
- 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
- 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
- G02B23/08—Periscopes
Landscapes
- Physics & Mathematics (AREA)
- Astronomy & Astrophysics (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR1005518A true FR1005518A (nl) | 1952-04-17 |
Family
ID=1567408
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR1005518D Expired FR1005518A (nl) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR1005518A (nl) |
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0
- FR FR1005518D patent/FR1005518A/fr not_active Expired