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发明名称
Switching device
摘要
申请公布号
US2259953(A)
申请公布日期
1941.10.21
申请号
US19400340664
申请日期
1940.06.15
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
FLANDERS PAUL B.;POLLARD CHARLES E.
分类号
H01H29/26
主分类号
H01H29/26
代理机构
代理人
主权项
地址
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