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发明名称
Piano action
摘要
申请公布号
US2305037(A)
申请公布日期
1942.12.15
申请号
US19410392876
申请日期
1941.05.10
申请人
CARL SCHULZE
发明人
SCHULZE CARL
分类号
G10C3/16
主分类号
G10C3/16
代理机构
代理人
主权项
地址
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