FR363537A - Microphone - Google Patents

Microphone

Info

Publication number
FR363537A
FR363537A FR363537DA FR363537A FR 363537 A FR363537 A FR 363537A FR 363537D A FR363537D A FR 363537DA FR 363537 A FR363537 A FR 363537A
Authority
FR
France
Prior art keywords
microphone
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
Leonello Giuseppe Facchini
Hilaire-Aristide Pointreau
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.)
HILAIRE ARISTIDE POINTREAU
Original Assignee
HILAIRE ARISTIDE POINTREAU
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 HILAIRE ARISTIDE POINTREAU filed Critical HILAIRE ARISTIDE POINTREAU
Application granted granted Critical
Publication of FR363537A publication Critical patent/FR363537A/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
    • H04R21/00—Variable-resistance transducers
    • H04R21/02—Microphones

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR363537D 1906-02-21 1906-02-21 Microphone Expired FR363537A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR363537T 1906-02-21

Publications (1)

Publication Number Publication Date
FR363537A true FR363537A (fr) 1906-08-02

Family

ID=1410943

Family Applications (1)

Application Number Title Priority Date Filing Date
FR363537D Expired FR363537A (fr) 1906-02-21 1906-02-21 Microphone

Country Status (1)

Country Link
FR (1) FR363537A (fr)

Similar Documents

Publication Publication Date Title
FR363612A (fr) Chevalet-pupitre
FR365623A (fr) Microtéléphone perfectionné
CH38646A (fr) Microphone perfectionné
DK8616C (da) Mikrofon.
FR364115A (fr) Guipure
FR366385A (fr) Broyeur-mélangeur
FR366014A (fr) Touraille
FR366169A (fr) Boutonnière-passepoil
FR365196A (fr) Fixe-voilette
FR363935A (fr) Botteleuse-lieuse
FR362401A (fr) Classeur-relieur
FR362607A (fr) Galoche-pardessus
FR365543A (fr) Compteur-vérificateur kilométrique
FR363824A (fr) Boggie
FR364183A (fr) Jalousies
FR364902A (fr) Bourse-nécessaire
FR366184A (fr) Biblorhapte
FR377468A (fr) Grisoumètre
FI2608A (fi) Kran
FI2614A (fi) Roddapparat
FI2758A (fi) Borstmaskin
FI2671A (fi) Omkastbar utväxling
CH36244A (fr) Motocycle-charrue
FI2684A (fi) Stiftpenna
FI2743A (fi) Cementblomkrukor