DE189978C - - Google Patents

Info

Publication number
DE189978C
DE189978C DENDAT189978D DE189978DA DE189978C DE 189978 C DE189978 C DE 189978C DE NDAT189978 D DENDAT189978 D DE NDAT189978D DE 189978D A DE189978D A DE 189978DA DE 189978 C DE189978 C DE 189978C
Authority
DE
Germany
Prior art keywords
membrane
fiber material
holes
partition
speaking machine
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
DENDAT189978D
Other languages
German (de)
English (en)
Publication of DE189978C publication Critical patent/DE189978C/de
Active legal-status Critical Current

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
    • G10K13/00Cones, diaphragms, or the like, for emitting or receiving sound in general

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Acoustics & Sound (AREA)
  • Multimedia (AREA)
  • Diaphragms For Electromechanical Transducers (AREA)
DENDAT189978D Active DE189978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE189978C true DE189978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=453477

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT189978D Active DE189978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE189978C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

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