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发明名称
Floating punch for forming outwardly extending bosses on narrow webbed channel members
摘要
申请公布号
US3134422(A)
申请公布日期
1964.05.26
申请号
US19610118387
申请日期
1961.06.20
申请人
A. O. SMITH CORPORATION
发明人
GRANBERG NEIL B.
分类号
B21C37/29
主分类号
B21C37/29
代理机构
代理人
主权项
地址
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