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FR617379A - Improvements to loudspeakers - Google Patents

Improvements to loudspeakers

Info

Publication number
FR617379A
FR617379A FR617379DA FR617379A FR 617379 A FR617379 A FR 617379A FR 617379D A FR617379D A FR 617379DA FR 617379 A FR617379 A FR 617379A
Authority
FR
France
Prior art keywords
loudspeakers
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
Philip Sweatman Hedgeland
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 FR617379A publication Critical patent/FR617379A/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
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/02—Casings; Cabinets ; Supports therefor; Mountings therein
    • H04R1/028—Casings; Cabinets ; Supports therefor; Mountings therein associated with devices performing functions other than acoustics, e.g. electric candles

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
FR617379D 1926-06-10 1926-06-10 Improvements to loudspeakers Expired FR617379A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR617379T 1926-06-10

Publications (1)

Publication Number Publication Date
FR617379A true FR617379A (en) 1927-02-18

Family

ID=8982267

Family Applications (1)

Application Number Title Priority Date Filing Date
FR617379D Expired FR617379A (en) 1926-06-10 1926-06-10 Improvements to loudspeakers

Country Status (1)

Country Link
FR (1) FR617379A (en)

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