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发明名称
Process of working steel for preventing surface defects thereof
摘要
申请公布号
US2968092(A)
申请公布日期
1961.01.17
申请号
US19570639633
申请日期
1957.02.12
申请人
YAWATA IRON AND STEEL CO., LTD.
发明人
OHTAKE TADASHI;ISHIZAKI KEIZO;EGUCHI NAOKI
分类号
B21B45/00;C21D1/68
主分类号
B21B45/00
代理机构
代理人
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地址
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