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发明名称
TELEPHONE TESTING MACHINE
摘要
申请公布号
CA327484(A)
申请公布日期
1932.11.08
申请号
CAD327484
申请日期
申请人
THE NORTHERN ELECTRIC COMPANY
发明人
WILSON SLOANE FREESLAND
分类号
主分类号
代理机构
代理人
主权项
地址
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