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FR714201A - Perfectionnement aux appareils de repérage des aéronefs - Google Patents

Perfectionnement aux appareils de repérage des aéronefs

Info

Publication number
FR714201A
FR714201A FR714201DA FR714201A FR 714201 A FR714201 A FR 714201A FR 714201D A FR714201D A FR 714201DA FR 714201 A FR714201 A FR 714201A
Authority
FR
France
Prior art keywords
development
tracking devices
aircraft tracking
aircraft
devices
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)
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.)
Anciens Etablissements Sautter Harle
Original Assignee
Anciens Etablissements Sautter Harle
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 Anciens Etablissements Sautter Harle filed Critical Anciens Etablissements Sautter Harle
Application granted granted Critical
Publication of FR714201A publication Critical patent/FR714201A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
    • G01S1/72—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using ultrasonic, sonic or infrasonic waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Headphones And Earphones (AREA)
FR714201D 1930-06-25 1930-06-25 Perfectionnement aux appareils de repérage des aéronefs Expired FR714201A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR714201T 1930-06-25

Publications (1)

Publication Number Publication Date
FR714201A true FR714201A (fr) 1931-11-10

Family

ID=9086270

Family Applications (1)

Application Number Title Priority Date Filing Date
FR714201D Expired FR714201A (fr) 1930-06-25 1930-06-25 Perfectionnement aux appareils de repérage des aéronefs

Country Status (2)

Country Link
BE (1) BE374940A (fr)
FR (1) FR714201A (fr)

Also Published As

Publication number Publication date
BE374940A (fr)

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