NL177136B - Overbruggingsinrichting voor uitzetvoegen in wegen. - Google Patents

Overbruggingsinrichting voor uitzetvoegen in wegen.

Info

Publication number
NL177136B
NL177136B NLAANVRAGE7401422,A NL177136DA NL177136B NL 177136 B NL177136 B NL 177136B NL 177136D A NL177136D A NL 177136DA NL 177136 B NL177136 B NL 177136B
Authority
NL
Netherlands
Prior art keywords
deployments
roads
bypassing device
bypassing
Prior art date
Application number
NLAANVRAGE7401422,A
Other languages
English (en)
Original Assignee
Proceq Sa
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 NL177136B publication Critical patent/NL177136B/nl

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
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/02—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using radio waves
    • G01S3/14—Systems for determining direction or deviation from predetermined direction
    • G01S3/16—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic
    • G01S3/18—Systems for determining direction or deviation from predetermined direction using amplitude comparison of signals derived sequentially from receiving antennas or antenna systems having differently-oriented directivity characteristics or from an antenna system having periodically-varied orientation of directivity characteristic derived directly from separate directional antennas
    • 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
    • G01S1/02—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 radio waves

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Transmitters (AREA)
  • Audible And Visible Signals (AREA)
  • Emergency Lowering Means (AREA)
NLAANVRAGE7401422,A 1952-05-08 Overbruggingsinrichting voor uitzetvoegen in wegen. NL177136B (nl)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1169752A GB717721A (en) 1952-05-08 1952-05-08 Improvements in and relating to radio-location

Publications (1)

Publication Number Publication Date
NL177136B true NL177136B (nl)

Family

ID=9991043

Family Applications (1)

Application Number Title Priority Date Filing Date
NLAANVRAGE7401422,A NL177136B (nl) 1952-05-08 Overbruggingsinrichting voor uitzetvoegen in wegen.

Country Status (4)

Country Link
DE (1) DE962901C (nl)
FR (1) FR1091656A (nl)
GB (1) GB717721A (nl)
NL (1) NL177136B (nl)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3048839A (en) * 1955-04-01 1962-08-07 Delaware Valley Electronics Co Survivor locator system
GB2318939A (en) * 1996-11-01 1998-05-06 Richard James Harvey Infra-red identification device

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE705190C (de) * 1937-02-04 1941-04-19 Telefunken Gmbh Verfahren zum Senden und Empfangen hochfrequenter Impulse
DE684804C (de) * 1937-07-08 1939-12-06 Telefunken Gmbh Impulspeilempfaenger
CH236134A (de) * 1944-03-11 1945-01-15 Leuzinger Hans Einrichtung zum Aufsuchen verschütteter Personen, insbesondere Lawinenverschütteter.

Also Published As

Publication number Publication date
GB717721A (en) 1954-11-03
FR1091656A (fr) 1955-04-14
DE962901C (de) 1957-05-02

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