FR677003A - Electro-magnetic phonograph reproducer - Google Patents

Electro-magnetic phonograph reproducer

Info

Publication number
FR677003A
FR677003A FR677003DA FR677003A FR 677003 A FR677003 A FR 677003A FR 677003D A FR677003D A FR 677003DA FR 677003 A FR677003 A FR 677003A
Authority
FR
France
Prior art keywords
electro
phonograph reproducer
magnetic phonograph
magnetic
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
Andre-Marie-Bernard Charlin
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 FR677003A publication Critical patent/FR677003A/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)
FR677003D 1928-10-22 1928-10-22 Electro-magnetic phonograph reproducer Expired FR677003A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR677003T 1928-10-22

Publications (1)

Publication Number Publication Date
FR677003A true FR677003A (en) 1930-03-03

Family

ID=9020194

Family Applications (1)

Application Number Title Priority Date Filing Date
FR677003D Expired FR677003A (en) 1928-10-22 1928-10-22 Electro-magnetic phonograph reproducer

Country Status (1)

Country Link
FR (1) FR677003A (en)

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