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发明名称
Switching device
摘要
申请公布号
US2807692(A)
申请公布日期
1957.09.24
申请号
US19550547705
申请日期
1955.11.18
申请人
RADIO CORPORATION OF AMERICA
发明人
LESLIE EDWARD S.
分类号
H01H3/20
主分类号
H01H3/20
代理机构
代理人
主权项
地址
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