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发明名称
Processed drawn implement
摘要
申请公布号
US2801604(A)
申请公布日期
1957.08.06
申请号
US19510204152
申请日期
1951.01.03
申请人
NATIONAL GLACO CHEMICAL CORPORATION
发明人
RUSSELL JOHN J.;BECK WILLIAM A.
分类号
B21D22/20
主分类号
B21D22/20
代理机构
代理人
主权项
地址
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