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发明名称
Shaping steel bar stock
摘要
申请公布号
US2616314(A)
申请公布日期
1952.11.04
申请号
US19510258924
申请日期
1951.11.29
申请人
THE DEFIANCE AUTOMATIC SCREW COMPANY
发明人
ZELLER ROBERT C.
分类号
B21K1/76
主分类号
B21K1/76
代理机构
代理人
主权项
地址
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