DE188557A - - Google Patents
Info
- Publication number
- DE188557A DE188557A DE188557A DE 188557 A DE188557 A DE 188557A DE 188557 A DE188557 A DE 188557A
- Authority
- DE
- Germany
- Prior art keywords
- rail
- lever
- adjustment
- springs
- music
- 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.)
- Pending
Links
Family
ID=
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