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发明名称
Relay control circuits
摘要
申请公布号
US2484342(A)
申请公布日期
1949.10.11
申请号
US19450619402
申请日期
1945.09.29
申请人
RADIO CORPORATION
发明人
HART STEPHEN V.
分类号
B61L13/04
主分类号
B61L13/04
代理机构
代理人
主权项
地址
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