BE332336A - - Google Patents

Info

Publication number
BE332336A
BE332336A BE332336DA BE332336A BE 332336 A BE332336 A BE 332336A BE 332336D A BE332336D A BE 332336DA BE 332336 A BE332336 A BE 332336A
Authority
BE
Belgium
Prior art keywords
telephone
nozzle
acoustic
sound
tubular
Prior art date
Application number
Other languages
English (en)
French (fr)
Publication of BE332336A publication Critical patent/BE332336A/fr

Links

Classifications

    • GPHYSICS
    • G10MUSICAL INSTRUMENTS; ACOUSTICS
    • G10KSOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
    • G10K11/00Methods 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
    • G10K11/02Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators
    • G10K11/025Mechanical acoustic impedances; Impedance matching, e.g. by horns; Acoustic resonators horns for impedance matching

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Pipe Accessories (AREA)
BE332336D BE332336A (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
BE332336A true BE332336A (enrdf_load_html_response)

Family

ID=11286

Family Applications (1)

Application Number Title Priority Date Filing Date
BE332336D BE332336A (enrdf_load_html_response)

Country Status (1)

Country Link
BE (1) BE332336A (enrdf_load_html_response)

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