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经营范围
发明名称
ELECTRON BEAM HEATING APPARATUS
摘要
申请公布号
GB1582707(A)
申请公布日期
1981.01.14
申请号
GB19770016118
申请日期
1978.04.18
申请人
GEC LTD
发明人
分类号
H01J37/09;H01J37/302;(IPC1-7):H01J37/02;B23K15/00
主分类号
H01J37/09
代理机构
代理人
主权项
地址
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