DE286781C - - Google Patents

Info

Publication number
DE286781C
DE286781C DE1913286781D DE286781DA DE286781C DE 286781 C DE286781 C DE 286781C DE 1913286781 D DE1913286781 D DE 1913286781D DE 286781D A DE286781D A DE 286781DA DE 286781 C DE286781 C DE 286781C
Authority
DE
Germany
Prior art keywords
ship
lead
wall
microphone
tongue
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 - Lifetime
Application number
DE1913286781D
Other languages
German (de)
English (en)
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 of DE286781C publication Critical patent/DE286781C/de
Application filed filed Critical
Anticipated expiration legal-status Critical
Expired - Lifetime 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)
  • Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
  • Soundproofing, Sound Blocking, And Sound Damping (AREA)
DE1913286781D 1913-03-19 1913-03-19 Expired - Lifetime DE286781C (en:Method)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE286781T 1913-03-19

Publications (1)

Publication Number Publication Date
DE286781C true DE286781C (en:Method)

Family

ID=32523419

Family Applications (1)

Application Number Title Priority Date Filing Date
DE1913286781D Expired - Lifetime DE286781C (en:Method) 1913-03-19 1913-03-19

Country Status (3)

Country Link
DE (1) DE286781C (en:Method)
FR (1) FR469802A (en:Method)
GB (1) GB191405935A (en:Method)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754593C (de) * 1941-06-12 1952-10-13 Aeg Elektrisches Messgeraet zur Messung mechanischer Schwingungen oder Beschleunigungen

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE754593C (de) * 1941-06-12 1952-10-13 Aeg Elektrisches Messgeraet zur Messung mechanischer Schwingungen oder Beschleunigungen

Also Published As

Publication number Publication date
FR469802A (fr) 1914-08-12
GB191405935A (en) 1914-05-14

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