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发明名称
Perforating device
摘要
申请公布号
US2494836(A)
申请公布日期
1950.01.17
申请号
US19450604906
申请日期
1945.07.13
申请人
WILSON-JONES CO.
发明人
SEGAL SAMUEL
分类号
B26F1/36
主分类号
B26F1/36
代理机构
代理人
主权项
地址
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