FR879597A - Reproducteur de sons mécano-électrique - Google Patents

Reproducteur de sons mécano-électrique

Info

Publication number
FR879597A
FR879597A FR879597DA FR879597A FR 879597 A FR879597 A FR 879597A FR 879597D A FR879597D A FR 879597DA FR 879597 A FR879597 A FR 879597A
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
English (en)
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 FR879597A publication Critical patent/FR879597A/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
    • 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)
  • Lubricants (AREA)
FR879597D 1941-10-24 1941-10-24 Reproducteur de sons mécano-électrique Expired FR879597A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR879597T 1941-10-24

Publications (1)

Publication Number Publication Date
FR879597A true FR879597A (fr) 1943-02-26

Family

ID=9361883

Family Applications (1)

Application Number Title Priority Date Filing Date
FR879597D Expired FR879597A (fr) 1941-10-24 1941-10-24 Reproducteur de sons mécano-électrique

Country Status (3)

Country Link
US (1) US2382692A (enrdf_load_stackoverflow)
BE (1) BE447677A (enrdf_load_stackoverflow)
FR (1) FR879597A (enrdf_load_stackoverflow)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2432066A (en) * 1945-04-26 1947-12-02 Well Surveys Inc Commutator design
US2542457A (en) * 1946-12-31 1951-02-20 Soundscriber Corp Electrodynamic pickup
US2566761A (en) * 1948-12-07 1951-09-04 Dubilier William Hearing aid

Also Published As

Publication number Publication date
US2382692A (en) 1945-08-14
BE447677A (enrdf_load_stackoverflow)

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