FR800938A - Electro-chemical recording device, particularly applicable to sound sounding devices - Google Patents

Electro-chemical recording device, particularly applicable to sound sounding devices

Info

Publication number
FR800938A
FR800938A FR800938DA FR800938A FR 800938 A FR800938 A FR 800938A FR 800938D A FR800938D A FR 800938DA FR 800938 A FR800938 A FR 800938A
Authority
FR
France
Prior art keywords
electro
recording device
particularly applicable
sounding devices
sound sounding
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
Application number
Other languages
French (fr)
Inventor
Harold Edward Morse
Edward Briggs Drake Mackenzie
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 FR800938A publication Critical patent/FR800938A/en
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)
  • Recording Measured Values (AREA)
  • Printing Methods (AREA)
  • Adjustable Resistors (AREA)
FR800938D 1934-12-03 1935-12-03 Electro-chemical recording device, particularly applicable to sound sounding devices Expired FR800938A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB3466134A GB448331A (en) 1934-12-03 1934-12-03 Improvements in recorders for echo sounding, and in other recording apparatus, in which marking is effected by electro-chemical means

Publications (1)

Publication Number Publication Date
FR800938A true FR800938A (en) 1936-07-22

Family

ID=10368400

Family Applications (1)

Application Number Title Priority Date Filing Date
FR800938D Expired FR800938A (en) 1934-12-03 1935-12-03 Electro-chemical recording device, particularly applicable to sound sounding devices

Country Status (3)

Country Link
BE (1) BE412585A (en)
FR (1) FR800938A (en)
GB (2) GB448331A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946926C (en) * 1953-10-08 1956-08-09 Milton Alden Registration device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE946926C (en) * 1953-10-08 1956-08-09 Milton Alden Registration device

Also Published As

Publication number Publication date
GB448408A (en) 1936-06-03
GB448331A (en) 1936-06-03
BE412585A (en)

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