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发明名称
Mechanical toy
摘要
申请公布号
US1821712(A)
申请公布日期
1931.09.01
申请号
US19300463654
申请日期
1930.06.25
申请人
HUDSON CHARLES E
发明人
HUDSON CHARLES E.
分类号
A63H33/40
主分类号
A63H33/40
代理机构
代理人
主权项
地址
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