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经营范围
发明名称
Improvements in or relating to electric switches and variable impedance devices
摘要
申请公布号
GB921433(A)
申请公布日期
1963.03.20
申请号
GB19600013638
申请日期
1960.04.19
申请人
MARCONI INSTRUMENTS LIMITED
发明人
COOPER JOHN RAYMOND
分类号
H01C10/08;H01H9/00
主分类号
H01C10/08
代理机构
代理人
主权项
地址
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