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发明名称
Conductive device
摘要
申请公布号
US2509909(A)
申请公布日期
1950.05.30
申请号
US19460719532
申请日期
1946.12.31
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
DAVIS GUSTOFF W.
分类号
H01C17/28
主分类号
H01C17/28
代理机构
代理人
主权项
地址
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