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发明名称
ELECTRICAL TRANSLATING APPARATUS
摘要
申请公布号
CA317712(A)
申请公布日期
1931.12.01
申请号
CAD317712
申请日期
申请人
THE UNION SWITCH AND SIGNAL COMPANY
发明人
PHILIP H. DOWLING
分类号
主分类号
代理机构
代理人
主权项
地址
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