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FR850197A - Sondeur aérien de sécurité - Google Patents

Sondeur aérien de sécurité

Info

Publication number
FR850197A
FR850197A FR850197DA FR850197A FR 850197 A FR850197 A FR 850197A FR 850197D A FR850197D A FR 850197DA FR 850197 A FR850197 A FR 850197A
Authority
FR
France
Prior art keywords
sounder
aerial
safety
safety aerial
aerial sounder
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
Desquesnes Raymond
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 FR850197A publication Critical patent/FR850197A/fr
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
    • G01C5/00—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels
    • G01C5/005—Measuring height; Measuring distances transverse to line of sight; Levelling between separated points; Surveyors' levels altimeters for aircraft

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
FR850197D 1939-02-11 1939-02-11 Sondeur aérien de sécurité Expired FR850197A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR850197T 1939-02-11

Publications (1)

Publication Number Publication Date
FR850197A true FR850197A (fr) 1939-12-09

Family

ID=9316174

Family Applications (1)

Application Number Title Priority Date Filing Date
FR850197D Expired FR850197A (fr) 1939-02-11 1939-02-11 Sondeur aérien de sécurité

Country Status (1)

Country Link
FR (1) FR850197A (fr)

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