FR569649A - Improvements made in the establishment of acoustic diffusers and resulting new products - Google Patents

Improvements made in the establishment of acoustic diffusers and resulting new products

Info

Publication number
FR569649A
FR569649A FR569649DA FR569649A FR 569649 A FR569649 A FR 569649A FR 569649D A FR569649D A FR 569649DA FR 569649 A FR569649 A FR 569649A
Authority
FR
France
Prior art keywords
establishment
improvements made
new products
resulting new
acoustic diffusers
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
French (fr)
Inventor
Henry Letorey
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 filed Critical
Application granted granted Critical
Publication of FR569649A publication Critical patent/FR569649A/en
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
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/12—Non-planar diaphragms or cones
    • H04R7/14—Non-planar diaphragms or cones corrugated, pleated or ribbed

Landscapes

  • Engineering & Computer Science (AREA)
  • Multimedia (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR569649D 1923-08-09 1923-08-09 Improvements made in the establishment of acoustic diffusers and resulting new products Expired FR569649A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR569649T 1923-08-09

Publications (1)

Publication Number Publication Date
FR569649A true FR569649A (en) 1924-04-15

Family

ID=8949320

Family Applications (1)

Application Number Title Priority Date Filing Date
FR569649D Expired FR569649A (en) 1923-08-09 1923-08-09 Improvements made in the establishment of acoustic diffusers and resulting new products

Country Status (1)

Country Link
FR (1) FR569649A (en)

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