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发明名称
Switching devices
摘要
申请公布号
US2922141(A)
申请公布日期
1960.01.19
申请号
US19570634260
申请日期
1957.01.15
申请人
THE NATIONAL CASH REGISTER COMPANY
发明人
SIMMERMAN RICHARD C.;ROUDEBUSH MELVIN T.
分类号
H01H43/06;H01H67/02
主分类号
H01H43/06
代理机构
代理人
主权项
地址
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