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发明名称
Switch system to prevent arcing of contacts
摘要
申请公布号
US2425570(A)
申请公布日期
1947.08.12
申请号
US19420462965
申请日期
1942.10.22
申请人
GENERAL RAILWAY SIGNAL COMPANY
发明人
SCHEG MARCIAN A.;DICKE OSCAR H.
分类号
H01H9/56
主分类号
H01H9/56
代理机构
代理人
主权项
地址
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