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发明名称
DISPOSITIVO REGOLATORE PER VARIARE LA RESISTENZA DELLA TASTIERA DI UN PIANOFORTE VERTICALE
摘要
申请公布号
IT8312547(D0)
申请公布日期
1983.06.14
申请号
IT19830012547
申请日期
1983.06.14
申请人
SPERATI CARLO
发明人
CARLO SPERATI
分类号
G10C;(IPC1-7):G10C/
主分类号
G10C
代理机构
代理人
主权项
地址
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