FR928462A - Loud speaker - Google Patents

Loud speaker

Info

Publication number
FR928462A
FR928462A FR928462DA FR928462A FR 928462 A FR928462 A FR 928462A FR 928462D A FR928462D A FR 928462DA FR 928462 A FR928462 A FR 928462A
Authority
FR
France
Prior art keywords
loud speaker
loud
speaker
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
Norbert-Charles-Mari Lallie
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 FR928462A publication Critical patent/FR928462A/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)
FR928462D 1946-05-28 1946-05-28 Loud speaker Expired FR928462A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR928462T 1946-05-28

Publications (1)

Publication Number Publication Date
FR928462A true FR928462A (en) 1947-11-28

Family

ID=9441818

Family Applications (1)

Application Number Title Priority Date Filing Date
FR928462D Expired FR928462A (en) 1946-05-28 1946-05-28 Loud speaker

Country Status (1)

Country Link
FR (1) FR928462A (en)

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