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发明名称
Electrical Keyboard Switch Devices
摘要
申请公布号
GB2093274(A)
申请公布日期
1982.08.25
申请号
GB19810004656
申请日期
1981.02.13
申请人
COAL INDUSTRY (PATENTS) LTD
发明人
分类号
H01H13/702;(IPC1-7):H01H13/14
主分类号
H01H13/702
代理机构
代理人
主权项
地址
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