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发明名称
Piano key mounting
摘要
申请公布号
US2470659(A)
申请公布日期
1949.05.17
申请号
US19460663259
申请日期
1946.04.19
申请人
THE RUDOLPH WURLITZER COMPANY
发明人
SLOAN EDWARD C.
分类号
主分类号
代理机构
代理人
主权项
地址
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