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ES177012A1 - IMPROVEMENTS IN OR RELATED TO MECROPHONES - Google Patents

IMPROVEMENTS IN OR RELATED TO MECROPHONES

Info

Publication number
ES177012A1
ES177012A1 ES177012A ES177012A ES177012A1 ES 177012 A1 ES177012 A1 ES 177012A1 ES 177012 A ES177012 A ES 177012A ES 177012 A ES177012 A ES 177012A ES 177012 A1 ES177012 A1 ES 177012A1
Authority
ES
Spain
Prior art keywords
mecrophones
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
ES177012A
Other languages
Spanish (es)
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.)
Nokia Spain SA
Original Assignee
Alcatel Espana SA
Standard Electrica 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.)
Filing date
Publication date
Application filed by Alcatel Espana SA, Standard Electrica SA filed Critical Alcatel Espana SA
Publication of ES177012A1 publication Critical patent/ES177012A1/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/08—Microphones
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
ES177012A 1945-12-11 1947-02-28 IMPROVEMENTS IN OR RELATED TO MECROPHONES Expired ES177012A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB264765X 1945-12-11

Publications (1)

Publication Number Publication Date
ES177012A1 true ES177012A1 (en) 1947-04-16

Family

ID=10244249

Family Applications (1)

Application Number Title Priority Date Filing Date
ES177012A Expired ES177012A1 (en) 1945-12-11 1947-02-28 IMPROVEMENTS IN OR RELATED TO MECROPHONES

Country Status (4)

Country Link
BE (1) BE475383A (en)
CH (1) CH264765A (en)
ES (1) ES177012A1 (en)
GB (1) GB626453A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1121117B (en) * 1957-09-18 1962-01-04 Holmberg & Co Small speaker with a specific frequency response

Also Published As

Publication number Publication date
BE475383A (en)
CH264765A (en) 1949-10-31
GB626453A (en) 1949-07-15

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