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发明名称
Drawing plug
摘要
申请公布号
US3006460(A)
申请公布日期
1961.10.31
申请号
US19590810020
申请日期
1959.04.30
申请人
BRUCE B. KROST
发明人
PONCAR JOHN J.
分类号
B21C3/16
主分类号
B21C3/16
代理机构
代理人
主权项
地址
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