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发明名称
SWITCHING DEVICE
摘要
申请公布号
CA451711(A)
申请公布日期
1948.10.05
申请号
CAD451711
申请日期
申请人
BELL TELEPHONE LABORATORIES;WESTERN ELECTRIC COMPANY, INCORPORATED
发明人
ARTHUR GARDNER FOX
分类号
主分类号
代理机构
代理人
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