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发明名称
Frequency responsive relay
摘要
申请公布号
US2485548(A)
申请公布日期
1949.10.25
申请号
US19460657738
申请日期
1946.03.28
申请人
ABBOTT JEROME G
发明人
ABBOTT JEROME G.
分类号
H01H53/10
主分类号
H01H53/10
代理机构
代理人
主权项
地址
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