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经营范围
发明名称
Improvements in or relating to Vacuum Electric Devices
摘要
申请公布号
GB1185872(A)
申请公布日期
1970.03.25
申请号
GB19670003691
申请日期
1967.01.25
申请人
ASSOCIATED ELECTRICAL INDUSTRIES LIMITED
发明人
GRAHAM RICHARD MITCHELL
分类号
H01H33/662;H01H33/664
主分类号
H01H33/662
代理机构
代理人
主权项
地址
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