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发明名称
Relay circuit
摘要
申请公布号
US2540098(A)
申请公布日期
1951.02.06
申请号
US19450622643
申请日期
1945.10.16
申请人
CARTMELL VERNON L
发明人
CARTMELL VERNON L.
分类号
H04B1/16
主分类号
H04B1/16
代理机构
代理人
主权项
地址
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