FR2172878B1 - - Google Patents
Info
- Publication number
- FR2172878B1 FR2172878B1 FR7206436A FR7206436A FR2172878B1 FR 2172878 B1 FR2172878 B1 FR 2172878B1 FR 7206436 A FR7206436 A FR 7206436A FR 7206436 A FR7206436 A FR 7206436A FR 2172878 B1 FR2172878 B1 FR 2172878B1
- 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
- G02B17/00—Systems with reflecting surfaces, with or without refracting elements
- G02B17/02—Catoptric systems, e.g. image erecting and reversing system
- G02B17/023—Catoptric systems, e.g. image erecting and reversing system for extending or folding an optical path, e.g. delay lines
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
- G01C25/00—Manufacturing, calibrating, cleaning, or repairing instruments or devices referred to in the other groups of this subclass
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Optics & Photonics (AREA)
- Manufacturing & Machinery (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7206436A FR2172878B1 (cs) | 1972-02-25 | 1972-02-25 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR7206436A FR2172878B1 (cs) | 1972-02-25 | 1972-02-25 |
Publications (2)
Publication Number | Publication Date |
---|---|
FR2172878A1 FR2172878A1 (cs) | 1973-10-05 |
FR2172878B1 true FR2172878B1 (cs) | 1975-10-24 |
Family
ID=9094143
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR7206436A Expired FR2172878B1 (cs) | 1972-02-25 | 1972-02-25 |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR2172878B1 (cs) |
-
1972
- 1972-02-25 FR FR7206436A patent/FR2172878B1/fr not_active Expired
Also Published As
Publication number | Publication date |
---|---|
FR2172878A1 (cs) | 1973-10-05 |
Similar Documents
Legal Events
Date | Code | Title | Description |
---|---|---|---|
ST | Notification of lapse |