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
Links
- 239000012528 membrane Substances 0.000 description 2
- 239000002775 capsule Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
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)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE273121C true DE273121C (https=) |
Family
ID=529604
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT273121D Active DE273121C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE273121C (https=) |
-
0
- DE DENDAT273121D patent/DE273121C/de active Active
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