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发明名称
CALL TRANSMITTER
摘要
申请公布号
CA459019(A)
申请公布日期
1949.08.16
申请号
CAD459019
申请日期
申请人
WESTERN ELECTRIC COMPANY, INCORPORATED;BELL TELEPHONE LABORATORIES
发明人
HAROLD W. GOFF
分类号
主分类号
代理机构
代理人
主权项
地址
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