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经营范围
发明名称
REPAIR WELDING METHOD FOR STEEL PIPE
摘要
申请公布号
JPS54152639(A)
申请公布日期
1979.12.01
申请号
JP19780060965
申请日期
1978.05.24
申请人
HITACHI LTD
发明人
IMAI KATSUYUKI;MASAOKA ISAO;KIRIHARA SEISHIN;CHIBA YOSHITERU;KANNO MASAYOSHI
分类号
B23K31/00
主分类号
B23K31/00
代理机构
代理人
主权项
地址
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