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发明名称
Improvements relating to methods of work hardening steel rods and wires
摘要
申请公布号
GB818854(A)
申请公布日期
1959.08.26
申请号
GB19570026857
申请日期
1957.08.26
申请人
WALTER HUFNAGL
发明人
分类号
B21D3/05;C21D8/08
主分类号
B21D3/05
代理机构
代理人
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