FR752709A - Diaphragmes et organes analogues pour machines parlantes - Google Patents

Diaphragmes et organes analogues pour machines parlantes

Info

Publication number
FR752709A
FR752709A FR752709DA FR752709A FR 752709 A FR752709 A FR 752709A FR 752709D A FR752709D A FR 752709DA FR 752709 A FR752709 A FR 752709A
Authority
FR
France
Prior art keywords
diaphragms
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
Rudolf Goldschmidt
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 FR752709A publication Critical patent/FR752709A/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)
FR752709D 1931-01-13 1932-01-12 Diaphragmes et organes analogues pour machines parlantes Expired FR752709A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE752709X 1931-01-13

Publications (1)

Publication Number Publication Date
FR752709A true FR752709A (fr) 1933-09-29

Family

ID=6654994

Family Applications (1)

Application Number Title Priority Date Filing Date
FR752709D Expired FR752709A (fr) 1931-01-13 1932-01-12 Diaphragmes et organes analogues pour machines parlantes

Country Status (1)

Country Link
FR (1) FR752709A (fr)

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