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经营范围
发明名称
Electrostatically Focused Microwave Tubes
摘要
申请公布号
GB1199189(A)
申请公布日期
1970.07.15
申请号
GB19670051141
申请日期
1967.11.09
申请人
VARIAN ASSOCIATES
发明人
JOHANN RICHARD HECHTEL
分类号
H01J23/083;H01J25/20
主分类号
H01J23/083
代理机构
代理人
主权项
地址
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