FR879596A - Mechanical-electric sound reproducer - Google Patents

Mechanical-electric sound reproducer

Info

Publication number
FR879596A
FR879596A FR879596DA FR879596A FR 879596 A FR879596 A FR 879596A FR 879596D A FR879596D A FR 879596DA FR 879596 A FR879596 A FR 879596A
Authority
FR
France
Prior art keywords
mechanical
sound reproducer
electric sound
electric
reproducer
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)
Inventor
Georges Courcy
Marcel-Paul Durand
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 FR879596A publication Critical patent/FR879596A/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
    • H04R21/00—Variable-resistance transducers
    • H04R21/04—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR879596D 1941-10-24 1941-10-24 Mechanical-electric sound reproducer Expired FR879596A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR879596T 1941-10-24

Publications (1)

Publication Number Publication Date
FR879596A true FR879596A (en) 1943-02-26

Family

ID=9361882

Family Applications (1)

Application Number Title Priority Date Filing Date
FR879596D Expired FR879596A (en) 1941-10-24 1941-10-24 Mechanical-electric sound reproducer

Country Status (2)

Country Link
BE (1) BE447676A (en)
FR (1) FR879596A (en)

Also Published As

Publication number Publication date
BE447676A (en)

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