FR1589352A - - Google Patents

Info

Publication number
FR1589352A
FR1589352A FR1589352DA FR1589352A FR 1589352 A FR1589352 A FR 1589352A FR 1589352D A FR1589352D A FR 1589352DA FR 1589352 A FR1589352 A FR 1589352A
Authority
FR
France
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
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 FR1589352A publication Critical patent/FR1589352A/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)
FR1589352D 1958-03-29 1958-03-29 Expired FR1589352A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR761891 1958-03-29

Publications (1)

Publication Number Publication Date
FR1589352A true FR1589352A (fr) 1970-03-31

Family

ID=8706125

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1589352D Expired FR1589352A (fr) 1958-03-29 1958-03-29

Country Status (1)

Country Link
FR (1) FR1589352A (fr)

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