FR492693A - Viseur pour avions - Google Patents

Viseur pour avions

Info

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
Application number
Other languages
English (en)
Inventor
Camille Birault
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of FR492693A publication Critical patent/FR492693A/fr
Expired legal-status Critical Current

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)
FR492693D 1915-11-09 1915-11-09 Viseur pour avions Expired FR492693A (fr)

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)

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