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发明名称
Electromagnetic switching device
摘要
申请公布号
US1973090(A)
申请公布日期
1934.09.11
申请号
US19330663273
申请日期
1933.03.29
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
MILLER DANIEL D.
分类号
H01H51/06
主分类号
H01H51/06
代理机构
代理人
主权项
地址
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