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发明名称
Adjustable processing punch
摘要
申请公布号
US2338095(A)
申请公布日期
1944.01.04
申请号
US19430480953
申请日期
1943.03.29
申请人
CAMPBELL ALVIN A
发明人
CAMPBELL ALVIN A.
分类号
B21D28/34
主分类号
B21D28/34
代理机构
代理人
主权项
地址
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