DE253120C - - Google Patents
Info
- Publication number
- DE253120C DE253120C DENDAT253120D DE253120DA DE253120C DE 253120 C DE253120 C DE 253120C DE NDAT253120 D DENDAT253120 D DE NDAT253120D DE 253120D A DE253120D A DE 253120DA DE 253120 C DE253120 C DE 253120C
- Authority
- DE
- Germany
- Prior art keywords
- bellows
- additional
- chamber
- perforation
- main
- 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
- 230000002459 sustained effect Effects 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 11
- 230000000694 effects Effects 0.000 description 3
- 241000189705 Dunedin group Species 0.000 description 1
- 239000004927 clay Substances 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000000717 retained effect 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)
- Toys (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE253120C true DE253120C (https=) |
Family
ID=511418
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT253120D Active DE253120C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE253120C (https=) |
-
0
- DE DENDAT253120D patent/DE253120C/de active Active
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