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发明名称
Perforator
摘要
申请公布号
US1887331(A)
申请公布日期
1932.11.08
申请号
US19310559582
申请日期
1931.08.26
申请人
SHOMAKER WESLEY P
发明人
SHOMAKER WESLEY P.
分类号
B26F1/20
主分类号
B26F1/20
代理机构
代理人
主权项
地址
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