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发明名称
Coin testing mechanism
摘要
申请公布号
US2033930(A)
申请公布日期
1936.03.17
申请号
US19350018621
申请日期
1935.04.27
申请人
DU GRENIER FRANCIS C
发明人
GRENIER FRANCIS C. DU
分类号
主分类号
代理机构
代理人
主权项
地址
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