DE153067C - - Google Patents

Info

Publication number
DE153067C
DE153067C DENDAT153067D DE153067DA DE153067C DE 153067 C DE153067 C DE 153067C DE NDAT153067 D DENDAT153067 D DE NDAT153067D DE 153067D A DE153067D A DE 153067DA DE 153067 C DE153067 C DE 153067C
Authority
DE
Germany
Prior art keywords
trumpet
longitudinal fold
fold
longitudinal
openings
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
DENDAT153067D
Other languages
German (de)
English (en)
Publication of DE153067C publication Critical patent/DE153067C/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)
  • Spinning Or Twisting Of Yarns (AREA)
DENDAT153067D Active DE153067C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Publications (1)

Publication Number Publication Date
DE153067C true DE153067C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Family

ID=419736

Family Applications (1)

Application Number Title Priority Date Filing Date
DENDAT153067D Active DE153067C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Country Status (1)

Country Link
DE (1) DE153067C (GUID-C5D7CC26-194C-43D0-91A1-9AE8C70A9BFF.html)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5094317A (en) * 1990-11-30 1992-03-10 Ladendorf Richard A Two-piece megaphone with ornamental member

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5094317A (en) * 1990-11-30 1992-03-10 Ladendorf Richard A Two-piece megaphone with ornamental member

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