FR927708A - Improvements to optical observation devices - Google Patents
Improvements to optical observation devicesInfo
- Publication number
- FR927708A FR927708A FR927708DA FR927708A FR 927708 A FR927708 A FR 927708A FR 927708D A FR927708D A FR 927708DA FR 927708 A FR927708 A FR 927708A
- Authority
- FR
- France
- Prior art keywords
- optical observation
- observation devices
- devices
- optical
- observation
- 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
- G02B23/16—Housings; Caps; Mountings; Supports, e.g. with counterweight
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 |
---|---|---|---|
GB927708X | 1940-05-18 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR927708A true FR927708A (en) | 1947-11-07 |
Family
ID=10728014
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR927708D Expired FR927708A (en) | 1940-05-18 | 1946-06-06 | Improvements to optical observation devices |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR927708A (en) |
-
1946
- 1946-06-06 FR FR927708D patent/FR927708A/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
FR866865A (en) | Advanced optical glasses | |
FR927708A (en) | Improvements to optical observation devices | |
FR892220A (en) | Improvements to optical devices | |
FR866796A (en) | Transparent shield | |
FR866777A (en) | Improvements to electro-optical telescopes | |
FR712920A (en) | Improvements to optical devices | |
FR907557A (en) | Improvements to cinematographic devices | |
FR839556A (en) | Improvements to electrotherapy devices | |
FR859212A (en) | Adhesive solutions | |
FR885604A (en) | Improvements to optical instruments | |
FR866795A (en) | Improvements to optical telephony devices | |
FR874394A (en) | Improvements in optical devices | |
FR867862A (en) | Improvements to kaleidoscopes | |
FR869432A (en) | Improvements to ignition devices | |
FR927493A (en) | Further training in optical observation instruments | |
FR871363A (en) | Improvements to binocular binoculars | |
FR51749E (en) | Improvements to orthopedic devices | |
FR877924A (en) | Photographic magnifier | |
FR953762A (en) | Instruments for dentist | |
FR866858A (en) | Direct draft gasifier | |
FR876882A (en) | Oscillograph tube | |
FR884172A (en) | Microscope | |
FR829964A (en) | Optical device | |
FR946477A (en) | Improvements to cinematographic devices | |
FR904902A (en) | Microscope |