FR1129211A - Improvements to electroacoustic devices, especially headsets - Google Patents

Improvements to electroacoustic devices, especially headsets

Info

Publication number
FR1129211A
FR1129211A FR1129211DA FR1129211A FR 1129211 A FR1129211 A FR 1129211A FR 1129211D A FR1129211D A FR 1129211DA FR 1129211 A FR1129211 A FR 1129211A
Authority
FR
France
Prior art keywords
headsets
electroacoustic devices
electroacoustic
devices
especially headsets
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.)
Association des Ouvriers en Instruments de Precision
Original Assignee
Association des Ouvriers en Instruments de Precision
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 Association des Ouvriers en Instruments de Precision filed Critical Association des Ouvriers en Instruments de Precision
Application granted granted Critical
Publication of FR1129211A publication Critical patent/FR1129211A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/04—Supports for telephone transmitters or receivers
    • H04M1/05—Supports for telephone transmitters or receivers specially adapted for use on head, throat or breast

Landscapes

  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Engineering & Computer Science (AREA)
  • Signal Processing (AREA)
FR1129211D 1955-07-23 1955-07-23 Improvements to electroacoustic devices, especially headsets Expired FR1129211A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1129211T 1955-07-23

Publications (1)

Publication Number Publication Date
FR1129211A true FR1129211A (en) 1957-01-17

Family

ID=9636741

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1129211D Expired FR1129211A (en) 1955-07-23 1955-07-23 Improvements to electroacoustic devices, especially headsets

Country Status (1)

Country Link
FR (1) FR1129211A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125486B (en) * 1960-03-17 1962-03-15 Akg Akustische Kino Geraete Headphones with springy headband

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1125486B (en) * 1960-03-17 1962-03-15 Akg Akustische Kino Geraete Headphones with springy headband

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