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BE363204A - - Google Patents
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BE363204A - - Google Patents

Info

Publication number
BE363204A
BE363204A BE363204DA BE363204A BE 363204 A BE363204 A BE 363204A BE 363204D A BE363204D A BE 363204DA BE 363204 A BE363204 A BE 363204A
Authority
BE
Belgium
Prior art keywords
megaphone
ring
pavilion
series
small base
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE363204A publication Critical patent/BE363204A/fr

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
    • G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
    • G10K11/18—Methods or devices for transmitting, conducting or directing sound
    • G10K11/26—Sound-focusing or directing, e.g. scanning
    • G10K11/28—Sound-focusing or directing, e.g. scanning using reflection, e.g. parabolic reflectors

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Adornments (AREA)
BE363204D BE363204A (sr)

Publications (1)

Publication Number Publication Date
BE363204A true BE363204A (sr)

Family

ID=35967

Family Applications (1)

Application Number Title Priority Date Filing Date
BE363204D BE363204A (sr)

Country Status (1)

Country Link
BE (1) BE363204A (sr)

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