DE250117C - - Google Patents
Info
- Publication number
- DE250117C DE250117C DENDAT250117D DE250117DA DE250117C DE 250117 C DE250117 C DE 250117C DE NDAT250117 D DENDAT250117 D DE NDAT250117D DE 250117D A DE250117D A DE 250117DA DE 250117 C DE250117 C DE 250117C
- Authority
- DE
- Germany
- Prior art keywords
- perforation
- main
- additional
- valve
- sliding block
- 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
- 238000004080 punching Methods 0.000 claims 1
- 239000012528 membrane Substances 0.000 description 8
- 241000189705 Dunedin group Species 0.000 description 1
- 238000005452 bending 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)
- Toys (AREA)
Publications (1)
| Publication Number | Publication Date |
|---|---|
| DE250117C true DE250117C (https=) |
Family
ID=508677
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| DENDAT250117D Active DE250117C (https=) |
Country Status (1)
| Country | Link |
|---|---|
| DE (1) | DE250117C (https=) |
-
0
- DE DENDAT250117D patent/DE250117C/de active Active
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