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经营范围
发明名称
Coupling system
摘要
申请公布号
US2408033(A)
申请公布日期
1946.09.24
申请号
US19420435016
申请日期
1942.03.17
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
BECK ALFRED C.
分类号
H01P5/103
主分类号
H01P5/103
代理机构
代理人
主权项
地址
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