FR492693A - Viseur pour avions - Google Patents
Viseur pour avionsInfo
- Publication number
- FR492693A FR492693A FR492693DA FR492693A FR 492693 A FR492693 A FR 492693A FR 492693D A FR492693D A FR 492693DA FR 492693 A FR492693 A FR 492693A
- Authority
- FR
- France
- Prior art keywords
- aircraft sight
- sight
- aircraft
- 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
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR492693T | 1915-11-09 |
Publications (1)
Publication Number | Publication Date |
---|---|
FR492693A true FR492693A (fr) | 1919-07-16 |
Family
ID=1528530
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
FR492693D Expired FR492693A (fr) | 1915-11-09 | 1915-11-09 | Viseur pour avions |
Country Status (1)
Country | Link |
---|---|
FR (1) | FR492693A (fr) |
-
1915
- 1915-11-09 FR FR492693D patent/FR492693A/fr not_active Expired
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