FR987809A - Loud speaker - Google Patents

Loud speaker

Info

Publication number
FR987809A
FR987809A FR987809DA FR987809A FR 987809 A FR987809 A FR 987809A FR 987809D A FR987809D A FR 987809DA FR 987809 A FR987809 A FR 987809A
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
Raymond Collet
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 FR987809A publication Critical patent/FR987809A/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
    • H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06—Loudspeakers

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR987809D 1949-06-04 1949-06-04 Loud speaker Expired FR987809A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR987809T 1949-06-04

Publications (1)

Publication Number Publication Date
FR987809A true FR987809A (en) 1951-08-20

Family

ID=9539130

Family Applications (1)

Application Number Title Priority Date Filing Date
FR987809D Expired FR987809A (en) 1949-06-04 1949-06-04 Loud speaker

Country Status (1)

Country Link
FR (1) FR987809A (en)

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