FR953245A - Improvements to electroacoustic systems - Google Patents

Improvements to electroacoustic systems

Info

Publication number
FR953245A
FR953245A FR953245DA FR953245A FR 953245 A FR953245 A FR 953245A FR 953245D A FR953245D A FR 953245DA FR 953245 A FR953245 A FR 953245A
Authority
FR
France
Prior art keywords
electroacoustic systems
electroacoustic
systems
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)
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.)
GUIDED RADIO CORP
Original Assignee
GUIDED RADIO 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 GUIDED RADIO CORP filed Critical GUIDED RADIO CORP
Application granted granted Critical
Publication of FR953245A publication Critical patent/FR953245A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R11/00—Transducers of moving-armature or moving-core type

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electromagnets (AREA)
FR953245D 1947-08-19 1947-09-19 Improvements to electroacoustic systems Expired FR953245A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2297447A GB643518A (en) 1947-08-19 1947-08-19 Improvements in or relating to transducers

Publications (1)

Publication Number Publication Date
FR953245A true FR953245A (en) 1949-12-02

Family

ID=10188059

Family Applications (1)

Application Number Title Priority Date Filing Date
FR953245D Expired FR953245A (en) 1947-08-19 1947-09-19 Improvements to electroacoustic systems

Country Status (3)

Country Link
CH (1) CH265060A (en)
FR (1) FR953245A (en)
GB (1) GB643518A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052458B (en) * 1954-07-21 1959-03-12 Krone Kg For installation in a earpiece for telephones specific electromagnetic four-pole system
DE1180415B (en) * 1961-09-06 1964-10-29 Ind Res Products Inc Electromagnetic converter
DE1299039B (en) * 1966-04-19 1969-07-10 Indian Telephone Ind Ltd Doora Electromagnetic vibrating device

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1052458B (en) * 1954-07-21 1959-03-12 Krone Kg For installation in a earpiece for telephones specific electromagnetic four-pole system
DE1180415B (en) * 1961-09-06 1964-10-29 Ind Res Products Inc Electromagnetic converter
DE1299039B (en) * 1966-04-19 1969-07-10 Indian Telephone Ind Ltd Doora Electromagnetic vibrating device

Also Published As

Publication number Publication date
GB643518A (en) 1950-09-20
CH265060A (en) 1949-11-15

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