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经营范围
发明名称
Screw threading die and its manufacture
摘要
申请公布号
US2607935(A)
申请公布日期
1952.08.26
申请号
US19490117853
申请日期
1949.09.26
申请人
ENGLISH STEEL CORPORATION LIMITED
发明人
ARCHER JOHN
分类号
B21H3/02
主分类号
B21H3/02
代理机构
代理人
主权项
地址
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