BE385855A - - Google Patents

Info

Publication number
BE385855A
BE385855A BE385855DA BE385855A BE 385855 A BE385855 A BE 385855A BE 385855D A BE385855D A BE 385855DA BE 385855 A BE385855 A BE 385855A
Authority
BE
Belgium
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.)
Publication of BE385855A publication Critical patent/BE385855A/xx

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)
  • Transmission Devices (AREA)
BE385855D 1931-02-07 BE385855A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CS396715X 1931-02-07

Publications (1)

Publication Number Publication Date
BE385855A true BE385855A (en)

Family

ID=5452665

Family Applications (1)

Application Number Title Priority Date Filing Date
BE385855D BE385855A (en) 1931-02-07

Country Status (2)

Country Link
BE (1) BE385855A (en)
GB (1) GB396715A (en)

Also Published As

Publication number Publication date
GB396715A (en) 1933-08-08

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