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发明名称
Electrical contact device
摘要
申请公布号
US1757703(A)
申请公布日期
1930.05.06
申请号
US19260124595
申请日期
1926.07.24
申请人
BELL TELEPHONE LABORATORIES, INCORPORATED
发明人
CURTIS AUSTEN M.
分类号
H01H50/30;H01H51/22
主分类号
H01H50/30
代理机构
代理人
主权项
地址
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