FR1030127A - élément d'écouteur téléphonique - Google Patents

élément d'écouteur téléphonique

Info

Publication number
FR1030127A
FR1030127A FR1030127DA FR1030127A FR 1030127 A FR1030127 A FR 1030127A FR 1030127D A FR1030127D A FR 1030127DA FR 1030127 A FR1030127 A FR 1030127A
Authority
FR
France
Prior art keywords
phone headset
headset element
phone
headset
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
English (en)
Inventor
Henri Depaepe
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 filed Critical
Application granted granted Critical
Publication of FR1030127A publication Critical patent/FR1030127A/fr
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
    • H04R13/00—Transducers having an acoustic diaphragm of magnetisable material directly co-acting with electromagnet
    • H04R13/02—Telephone receivers

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR1030127D 1950-12-26 1950-12-26 élément d'écouteur téléphonique Expired FR1030127A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1030127T 1950-12-26

Publications (1)

Publication Number Publication Date
FR1030127A true FR1030127A (fr) 1953-06-10

Family

ID=9582297

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1030127D Expired FR1030127A (fr) 1950-12-26 1950-12-26 élément d'écouteur téléphonique

Country Status (1)

Country Link
FR (1) FR1030127A (fr)

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