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发明名称
Relay circuit
摘要
申请公布号
US2820157(A)
申请公布日期
1958.01.14
申请号
US19540465542
申请日期
1954.10.29
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
RIEKE JOHN W.
分类号
H01H47/00;H01H67/22
主分类号
H01H47/00
代理机构
代理人
主权项
地址
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