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发明名称
Disk-spinning toy
摘要
申请公布号
US1952547(A)
申请公布日期
1934.03.27
申请号
US19330668401
申请日期
1933.04.28
申请人
GRAVES HENRY W
发明人
GRAVES HENRY W.
分类号
A63H1/02;A63H27/127
主分类号
A63H1/02
代理机构
代理人
主权项
地址
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