FR657330A - Improvements to talking machines - Google Patents

Improvements to talking machines

Info

Publication number
FR657330A
FR657330A FR657330DA FR657330A FR 657330 A FR657330 A FR 657330A FR 657330D A FR657330D A FR 657330DA FR 657330 A FR657330 A FR 657330A
Authority
FR
France
Prior art keywords
talking machines
talking
machines
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
Rene Barthelemy
Henri Gondet
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 FR657330A publication Critical patent/FR657330A/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
    • H04R11/00—Transducers of moving-armature or moving-core type
    • H04R11/08—Gramophone pick-ups using a stylus; Recorders using a stylus

Landscapes

  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR657330D 1927-11-23 1927-11-23 Improvements to talking machines Expired FR657330A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR657330T 1927-11-23

Publications (1)

Publication Number Publication Date
FR657330A true FR657330A (en) 1929-05-21

Family

ID=9008364

Family Applications (1)

Application Number Title Priority Date Filing Date
FR657330D Expired FR657330A (en) 1927-11-23 1927-11-23 Improvements to talking machines

Country Status (1)

Country Link
FR (1) FR657330A (en)

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