FR455797A - Nouveau microphone - Google Patents

Nouveau microphone

Info

Publication number
FR455797A
FR455797A FR455797A FR455797DA FR455797A FR 455797 A FR455797 A FR 455797A FR 455797 A FR455797 A FR 455797A FR 455797D A FR455797D A FR 455797DA FR 455797 A FR455797 A FR 455797A
Authority
FR
France
Prior art keywords
new microphone
microphone
new
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
FR455797A
Other languages
English (en)
French (fr)
Inventor
Giuseppe Vanni
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.)
GIUSEPPE VANNI
Original Assignee
GIUSEPPE VANNI
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 GIUSEPPE VANNI filed Critical GIUSEPPE VANNI
Application granted granted Critical
Publication of FR455797A publication Critical patent/FR455797A/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; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones
    • H04R21/028—Microphones with a fluid as resistance material

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Electrostatic, Electromagnetic, Magneto- Strictive, And Variable-Resistance Transducers (AREA)
FR455797A 1912-04-30 1913-03-22 Nouveau microphone Expired FR455797A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT455797X 1912-04-30

Publications (1)

Publication Number Publication Date
FR455797A true FR455797A (fr) 1913-08-08

Family

ID=5997684

Family Applications (1)

Application Number Title Priority Date Filing Date
FR455797A Expired FR455797A (fr) 1912-04-30 1913-03-22 Nouveau microphone

Country Status (2)

Country Link
DE (1) DE268018C (enrdf_load_stackoverflow)
FR (1) FR455797A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
DE268018C (enrdf_load_stackoverflow)

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