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发明名称
Manually operable switching network
摘要
申请公布号
GB2050609(A)
申请公布日期
1981.01.07
申请号
GB19790016834
申请日期
1979.05.15
申请人
WATFORD ELECTRIC CO LTD
发明人
分类号
H03K17/64;H03K17/96;(IPC1-7):H03K17/96
主分类号
H03K17/64
代理机构
代理人
主权项
地址
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