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发明名称
Put-together toy piano
摘要
申请公布号
US3057244(A)
申请公布日期
1962.10.09
申请号
US19600045411
申请日期
1960.07.26
申请人
PEARSON JR CHARLES
发明人
JR. CHARLES PEARSON,
分类号
G10D13/08
主分类号
G10D13/08
代理机构
代理人
主权项
地址
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