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经营范围
发明名称
ELECTRON BEAM WELDING PROCESS
摘要
申请公布号
JPS5260255(A)
申请公布日期
1977.05.18
申请号
JP19750135148
申请日期
1975.11.12
申请人
HITACHI LTD
发明人
MATSUZAKA KIYOU;KIRIHARA SEISHIN
分类号
B23K15/00
主分类号
B23K15/00
代理机构
代理人
主权项
地址
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