FR589047A - - Google Patents
Info
- Publication number
- FR589047A FR589047A FR589047DA FR589047A FR 589047 A FR589047 A FR 589047A FR 589047D A FR589047D A FR 589047DA FR 589047 A FR589047 A FR 589047A
- 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
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR589047A true FR589047A (en) | 1925-05-22 |
Family
ID=1540003
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR589047D Expired FR589047A (en) |
Country Status (1)
| Country | Link |
|---|---|
| FR (1) | FR589047A (en) |
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0
- FR FR589047D patent/FR589047A/fr not_active Expired