FR399794A - Perfectionnements aux membranes sonores - Google Patents

Perfectionnements aux membranes sonores

Info

Publication number
FR399794A
FR399794A FR399794DA FR399794A FR 399794 A FR399794 A FR 399794A FR 399794D A FR399794D A FR 399794DA FR 399794 A FR399794 A FR 399794A
Authority
FR
France
Prior art keywords
membranes
sound
sound membranes
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
Walther Burstyn
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Application granted granted Critical
Publication of FR399794A publication Critical patent/FR399794A/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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H04R7/06—Plane diaphragms comprising a plurality of sections or layers
    • H04R7/10—Plane diaphragms comprising a plurality of sections or layers comprising superposed layers in contact

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR399794D 1908-02-22 1909-02-20 Perfectionnements aux membranes sonores Expired FR399794A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE399794X 1908-02-22

Publications (1)

Publication Number Publication Date
FR399794A true FR399794A (fr) 1909-07-07

Family

ID=1444717

Family Applications (1)

Application Number Title Priority Date Filing Date
FR399794D Expired FR399794A (fr) 1908-02-22 1909-02-20 Perfectionnements aux membranes sonores

Country Status (1)

Country Link
FR (1) FR399794A (fr)

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