FR872816A - Haut-parleur à membrane en matières plastiques - Google Patents

Haut-parleur à membrane en matières plastiques

Info

Publication number
FR872816A
FR872816A FR872816DA FR872816A FR 872816 A FR872816 A FR 872816A FR 872816D A FR872816D A FR 872816DA FR 872816 A FR872816 A FR 872816A
Authority
FR
France
Prior art keywords
loudspeaker
plastic membrane
membrane
plastic
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)
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.)
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Original Assignee
Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
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 Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH filed Critical Fides Gesellschaft fuer die Verwaltung und Verwertung von Gewerblichen Schutzrechten mbH
Application granted granted Critical
Publication of FR872816A publication Critical patent/FR872816A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02—Details
    • H04R9/04—Construction, mounting, or centering of coil

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR872816D 1939-03-02 1941-06-03 Haut-parleur à membrane en matières plastiques Expired FR872816A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE872816X 1939-03-02

Publications (1)

Publication Number Publication Date
FR872816A true FR872816A (fr) 1942-06-19

Family

ID=6816147

Family Applications (1)

Application Number Title Priority Date Filing Date
FR872816D Expired FR872816A (fr) 1939-03-02 1941-06-03 Haut-parleur à membrane en matières plastiques

Country Status (2)

Country Link
BE (1) BE441609A (en))
FR (1) FR872816A (en))

Also Published As

Publication number Publication date
BE441609A (en))

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