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经营范围
发明名称
CHANGEOVER SWITCH
摘要
申请公布号
GB8721270(D0)
申请公布日期
1987.10.14
申请号
GB19870021270
申请日期
1987.09.10
申请人
CLONARD ELECTRONIC SERVICES LTD
发明人
分类号
G04G15/00
主分类号
G04G15/00
代理机构
代理人
主权项
地址
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