DE273121C - - Google Patents

Info

Publication number
DE273121C
DE273121C DENDAT273121D DE273121DA DE273121C DE 273121 C DE273121 C DE 273121C DE NDAT273121 D DENDAT273121 D DE NDAT273121D DE 273121D A DE273121D A DE 273121DA DE 273121 C DE273121 C DE 273121C
Authority
DE
Germany
Prior art keywords
speaking
machine housing
horn
speaking machine
funnel
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.)
Active
Application number
DENDAT273121D
Other languages
German (de)
English (en)
Publication of DE273121C publication Critical patent/DE273121C/de
Active 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)
  • Apparatuses For Generation Of Mechanical Vibrations (AREA)
DENDAT273121D Active DE273121C (enrdf_load_html_response)

Publications (1)

Publication Number Publication Date
DE273121C true DE273121C (enrdf_load_html_response)

Family

ID=529604

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT273121D Active DE273121C (enrdf_load_html_response)

Country Status (1)

Country Link
DE (1) DE273121C (enrdf_load_html_response)

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