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发明名称
Method and apparatus for making drive screws
摘要
申请公布号
US3238542(A)
申请公布日期
1966.03.08
申请号
US19640377650
申请日期
1964.06.24
申请人
SCREW & BOLT CORPORATION OF AMERICA
发明人
LOVISEK LOUIS J.
分类号
B21K1/56
主分类号
B21K1/56
代理机构
代理人
主权项
地址
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