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发明名称
Relay device
摘要
申请公布号
US2164823(A)
申请公布日期
1939.07.04
申请号
US19370163284
申请日期
1937.09.10
申请人
THE UNION SWITCH & SIGNAL COMPANY
发明人
KERSHAW ARTHUR GREENWOOD
分类号
H01H50/04;H01H50/32
主分类号
H01H50/04
代理机构
代理人
主权项
地址
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