FR817324A - Device for recording acoustic oscillations - Google Patents

Device for recording acoustic oscillations

Info

Publication number
FR817324A
FR817324A FR817324DA FR817324A FR 817324 A FR817324 A FR 817324A FR 817324D A FR817324D A FR 817324DA FR 817324 A FR817324 A FR 817324A
Authority
FR
France
Prior art keywords
acoustic oscillations
recording acoustic
recording
oscillations
acoustic
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)
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
METALLWERK ALFRED SCHWARZ G M B H Ste
Original Assignee
METALLWERK ALFRED SCHWARZ G M B H Ste
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 by METALLWERK ALFRED SCHWARZ G M B H Ste filed Critical METALLWERK ALFRED SCHWARZ G M B H Ste
Application granted granted Critical
Publication of FR817324A publication Critical patent/FR817324A/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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR817324D 1936-02-03 1937-02-03 Device for recording acoustic oscillations Expired FR817324A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE817324X 1936-02-03

Publications (1)

Publication Number Publication Date
FR817324A true FR817324A (en) 1937-09-01

Family

ID=6735186

Family Applications (1)

Application Number Title Priority Date Filing Date
FR817324D Expired FR817324A (en) 1936-02-03 1937-02-03 Device for recording acoustic oscillations

Country Status (1)

Country Link
FR (1) FR817324A (en)

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