FR601399A - Electrostatic telephone, microphone and especially loudspeaker - Google Patents

Electrostatic telephone, microphone and especially loudspeaker

Info

Publication number
FR601399A
FR601399A FR601399DA FR601399A FR 601399 A FR601399 A FR 601399A FR 601399D A FR601399D A FR 601399DA FR 601399 A FR601399 A FR 601399A
Authority
FR
France
Prior art keywords
microphone
electrostatic telephone
especially loudspeaker
loudspeaker
electrostatic
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.)
Tri Ergon A G
Original Assignee
Tri Ergon A G
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 Tri Ergon A G filed Critical Tri Ergon A G
Application granted granted Critical
Publication of FR601399A publication Critical patent/FR601399A/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
    • H04R19/00—Electrostatic transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
  • Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
FR601399D 1925-07-09 1925-07-29 Electrostatic telephone, microphone and especially loudspeaker Expired FR601399A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE248255X 1925-07-09

Publications (1)

Publication Number Publication Date
FR601399A true FR601399A (en) 1926-03-01

Family

ID=5935526

Family Applications (1)

Application Number Title Priority Date Filing Date
FR601399D Expired FR601399A (en) 1925-07-09 1925-07-29 Electrostatic telephone, microphone and especially loudspeaker

Country Status (4)

Country Link
US (2) US1609760A (en)
BE (1) BE331780A (en)
FR (1) FR601399A (en)
GB (1) GB248255A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6393129B1 (en) 1998-01-07 2002-05-21 American Technology Corporation Paper structures for speaker transducers

Also Published As

Publication number Publication date
USRE17256E (en) 1929-04-02
GB248255A (en) 1926-03-04
BE331780A (en)
US1609760A (en) 1926-12-07

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