FR1142071A - Perfectionnements aux haut-parleurs - Google Patents

Perfectionnements aux haut-parleurs

Info

Publication number
FR1142071A
FR1142071A FR1142071DA FR1142071A FR 1142071 A FR1142071 A FR 1142071A FR 1142071D A FR1142071D A FR 1142071DA FR 1142071 A FR1142071 A FR 1142071A
Authority
FR
France
Prior art keywords
enhancements
loudspeaker
loudspeaker enhancements
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)
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.)
TEPPAZ SA
Original Assignee
TEPPAZ SA
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 TEPPAZ SA filed Critical TEPPAZ SA
Application granted granted Critical
Publication of FR1142071A publication Critical patent/FR1142071A/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
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR1142071D 1956-02-01 1956-02-01 Perfectionnements aux haut-parleurs Expired FR1142071A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR1142071T 1956-02-01

Publications (1)

Publication Number Publication Date
FR1142071A true FR1142071A (fr) 1957-09-13

Family

ID=9643044

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1142071D Expired FR1142071A (fr) 1956-02-01 1956-02-01 Perfectionnements aux haut-parleurs

Country Status (1)

Country Link
FR (1) FR1142071A (fr)

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