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经营范围
发明名称
Electron beam apparatus for effecting an annular weld
摘要
申请公布号
GB2094200(A)
申请公布日期
1982.09.15
申请号
GB19810005923
申请日期
1981.02.25
申请人
GRAHAM MANUFACTURING LTD
发明人
分类号
B23K15/04;(IPC1-7):B23K15/00;H01J37/07;H01J37/31
主分类号
B23K15/04
代理机构
代理人
主权项
地址
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