NL12364C - - Google Patents

Info

Publication number
NL12364C
NL12364C NL12364DA NL12364C NL 12364 C NL12364 C NL 12364C NL 12364D A NL12364D A NL 12364DA NL 12364 C NL12364 C NL 12364C
Authority
NL
Netherlands
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 NL12364C publication Critical patent/NL12364C/xx

Links

Classifications

    • GPHYSICS
    • G01MEASURING; TESTING
    • G01SRADIO 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
    • G01S1/00Beacons 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
    • G01S1/72Beacons 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)
  • Circuit For Audible Band Transducer (AREA)
  • Obtaining Desirable Characteristics In Audible-Bandwidth Transducers (AREA)
  • Cable Transmission Systems, Equalization Of Radio And Reduction Of Echo (AREA)
NL12364D 1919-06-25 NL12364C (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US306689D US1682712A (en) 1919-06-25 1919-06-25 Electric compensator

Publications (1)

Publication Number Publication Date
NL12364C true NL12364C (en:Method)

Family

ID=23186406

Family Applications (1)

Application Number Title Priority Date Filing Date
NL12364D NL12364C (en:Method) 1919-06-25

Country Status (4)

Country Link
US (1) US1682712A (en:Method)
FR (1) FR524962A (en:Method)
GB (1) GB146193A (en:Method)
NL (1) NL12364C (en:Method)

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2786193A (en) * 1948-03-10 1957-03-19 Raytheon Mfg Co Underwater sound system
US2752584A (en) * 1950-12-13 1956-06-26 Melpar Inc Sonic system
BE510259A (en:Method) * 1951-03-28
US2847648A (en) * 1954-02-02 1958-08-12 Control Electronics Company In Printed delay line
FR2542095B1 (fr) * 1982-08-09 1987-12-18 Lem Sa Ensemble d'ecoute a distance

Also Published As

Publication number Publication date
GB146193A (en) 1921-10-25
US1682712A (en) 1928-08-28
FR524962A (fr) 1921-09-13

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