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FR524962A - Improvements made and relating to electrical compensators - Google Patents

Improvements made and relating to electrical compensators

Info

Publication number
FR524962A
FR524962A FR524962A FR524962DA FR524962A FR 524962 A FR524962 A FR 524962A FR 524962 A FR524962 A FR 524962A FR 524962D A FR524962D A FR 524962DA FR 524962 A FR524962 A FR 524962A
Authority
FR
France
Prior art keywords
compensators
relating
electrical
improvements made
electrical compensators
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
FR524962A
Other languages
French (fr)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Steward Davit & Equipment Corp
Original Assignee
Steward Davit & Equipment Corp
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 by Steward Davit & Equipment Corp filed Critical Steward Davit & Equipment Corp
Application granted granted Critical
Publication of FR524962A publication Critical patent/FR524962A/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)
  • 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)
FR524962A 1919-06-25 1920-07-10 Improvements made and relating to electrical compensators Expired FR524962A (en)

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
FR524962A true FR524962A (en) 1921-09-13

Family

ID=23186406

Family Applications (1)

Application Number Title Priority Date Filing Date
FR524962A Expired FR524962A (en) 1919-06-25 1920-07-10 Improvements made and relating to electrical compensators

Country Status (4)

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

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) * 1951-03-28
US2847648A (en) * 1954-02-02 1958-08-12 Control Electronics Company In Printed delay line
FR2542095B1 (en) * 1982-08-09 1987-12-18 Lem Sa REMOTE LISTENING ASSEMBLY

Also Published As

Publication number Publication date
US1682712A (en) 1928-08-28
GB146193A (en) 1921-10-25
NL12364C (en)

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