FR37571E - Compass air navigation device - Google Patents

Compass air navigation device

Info

Publication number
FR37571E
FR37571E FR37571DA FR37571E FR 37571 E FR37571 E FR 37571E FR 37571D A FR37571D A FR 37571DA FR 37571 E FR37571 E FR 37571E
Authority
FR
France
Prior art keywords
compass
navigation device
air navigation
air
navigation
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
French (fr)
Inventor
Jean-Marie Dufau De Laroque
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 filed Critical
Application granted granted Critical
Publication of FR37571E publication Critical patent/FR37571E/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01C—MEASURING DISTANCES, LEVELS OR BEARINGS; SURVEYING; NAVIGATION; GYROSCOPIC INSTRUMENTS; PHOTOGRAMMETRY OR VIDEOGRAMMETRY
    • G01C17/00—Compasses; Devices for ascertaining true or magnetic north for navigation or surveying purposes

Landscapes

  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
FR37571D 1929-07-19 1929-07-19 Compass air navigation device Expired FR37571E (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR37571T 1929-07-19

Publications (1)

Publication Number Publication Date
FR37571E true FR37571E (en) 1931-01-08

Family

ID=8674184

Family Applications (1)

Application Number Title Priority Date Filing Date
FR37571D Expired FR37571E (en) 1929-07-19 1929-07-19 Compass air navigation device

Country Status (1)

Country Link
FR (1) FR37571E (en)

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