DE222605C - - Google Patents
Info
- Publication number
- DE222605C DE222605C DENDAT222605D DE222605DA DE222605C DE 222605 C DE222605 C DE 222605C DE NDAT222605 D DENDAT222605 D DE NDAT222605D DE 222605D A DE222605D A DE 222605DA DE 222605 C DE222605 C DE 222605C
- Authority
- DE
- Germany
- Prior art keywords
- bellows
- outside air
- valve
- wind
- channel
- 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 7
- 230000007423 decrease Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10F—AUTOMATIC MUSICAL INSTRUMENTS
- G10F1/00—Automatic musical instruments
- G10F1/02—Pianofortes with keyboard
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Electrophonic Musical Instruments (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE222605C true DE222605C (en:Method) |
Family
ID=483482
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT222605D Active DE222605C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE222605C (en:Method) |
-
0
- DE DENDAT222605D patent/DE222605C/de active Active
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