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经营范围
发明名称
Switching apparatus
摘要
申请公布号
US2988672(A)
申请公布日期
1961.06.13
申请号
US19580731904
申请日期
1958.04.30
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
KILTZ RICHARD M.
分类号
H01H9/56
主分类号
H01H9/56
代理机构
代理人
主权项
地址
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