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发明名称
Detachable piano back
摘要
申请公布号
US2110946(A)
申请公布日期
1938.03.15
申请号
US19360078226
申请日期
1936.05.06
申请人
STORY & CLARK PIANO COMPANY
发明人
WORTHINGTON EVERETT
分类号
G10C3/02
主分类号
G10C3/02
代理机构
代理人
主权项
地址
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