DE254890C - - Google Patents
Info
- Publication number
- DE254890C DE254890C DENDAT254890D DE254890DA DE254890C DE 254890 C DE254890 C DE 254890C DE NDAT254890 D DENDAT254890 D DE NDAT254890D DE 254890D A DE254890D A DE 254890DA DE 254890 C DE254890 C DE 254890C
- Authority
- DE
- Germany
- Prior art keywords
- valve
- bellows
- chamber
- additional
- valves
- 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
- 230000008602 contraction Effects 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 239000010985 leather Substances 0.000 description 2
- 241000189705 Dunedin group Species 0.000 description 1
- 239000011324 bead Substances 0.000 description 1
- 239000012528 membrane Substances 0.000 description 1
- 230000002028 premature Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 238000007789 sealing Methods 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)
- Multiple-Way Valves (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE254890C true DE254890C (en:Method) |
Family
ID=513033
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT254890D Active DE254890C (en:Method) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE254890C (en:Method) |
-
0
- DE DENDAT254890D patent/DE254890C/de active Active
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