FR657330A - Perfectionnements aux machines parlantes - Google Patents

Perfectionnements aux machines parlantes

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
English (en)
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/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; ELECTRIC HEARING AIDS; 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 Perfectionnements aux machines parlantes Expired FR657330A (fr)

Applications Claiming Priority (1)

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

Publications (1)

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

Family

ID=9008364

Family Applications (1)

Application Number Title Priority Date Filing Date
FR657330D Expired FR657330A (fr) 1927-11-23 1927-11-23 Perfectionnements aux machines parlantes

Country Status (1)

Country Link
FR (1) FR657330A (fr)

Similar Documents

Publication Publication Date Title
FR657330A (fr) Perfectionnements aux machines parlantes
FR664846A (fr) Perfectionnements aux machines parlantes
FR34078E (fr) Perfectionnements apportés aux machines parlantes
FR640718A (fr) Perfectionnements apportés aux machines parlantes
FR641523A (fr) Perfectionnements apportés aux machines parlantes
FR646464A (fr) Perfectionnements apportés aux machines parlantes
FR652190A (fr) Perfectionnements apportés aux machines parlantes
FR647836A (fr) Perfectionnements apportés aux machines parlantes
FR673455A (fr) Perfectionnements aux machines parlantes
FR686205A (fr) Perfectionnements aux machines parlantes
FR666928A (fr) Perfectionnements aux machines parlantes
FR679917A (fr) Perfectionnements aux machines parlantes
FR652444A (fr) Perfectionnements aux machines dynamo-électriques
FR629132A (fr) Perfectionnements aux servo-freins
FR575290A (fr) Perfectionnements aux machines parlantes
FR638970A (fr) Perfectionnements apportés aux déchaumeuses
FR643106A (fr) Perfectionnements aux machines parlantes
FR629870A (fr) Perfectionnements aux machines parlantes
FR622756A (fr) Perfectionnements apportés aux machines parlantes
FR652274A (fr) Perfectionnements aux machines parlantes
FR663998A (fr) Perfectionnements aux machines parlantes
FR598638A (fr) Perfectionnements aux machines parlantes
FR612127A (fr) Perfectionnements apportés aux machines parlantes
FR678390A (fr) Perfectionnements aux machines parlantes
FR673864A (fr) Perfectionnements aux machines parlantes