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经营范围
发明名称
DICTATION MACHINE
摘要
申请公布号
CA334131(A)
申请公布日期
1933.07.18
申请号
CAD334131
申请日期
申请人
THE DICTAPHONE CORPORATION
发明人
THEODORE H. BEARD;JOSEPH M. LUCARELLE
分类号
主分类号
代理机构
代理人
主权项
地址
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