FR530494A - Improvements in sound amplifiers - Google Patents

Improvements in sound amplifiers

Info

Publication number
FR530494A
FR530494A FR530494DA FR530494A FR 530494 A FR530494 A FR 530494A FR 530494D A FR530494D A FR 530494DA FR 530494 A FR530494 A FR 530494A
Authority
FR
France
Prior art keywords
sound amplifiers
amplifiers
sound
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
Wilson Fawcett Smith
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 FR530494A publication Critical patent/FR530494A/en
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G10—MUSICAL INSTRUMENTS; ACOUSTICS
    • G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K13/00—Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
FR530494D 1921-02-03 1921-02-03 Improvements in sound amplifiers Expired FR530494A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR530494T 1921-02-03

Publications (1)

Publication Number Publication Date
FR530494A true FR530494A (en) 1921-12-23

Family

ID=8923315

Family Applications (1)

Application Number Title Priority Date Filing Date
FR530494D Expired FR530494A (en) 1921-02-03 1921-02-03 Improvements in sound amplifiers

Country Status (1)

Country Link
FR (1) FR530494A (en)

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