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发明名称
FERNSPRECH-KONFERENZANLAGE
摘要
申请公布号
DE2646924(A1)
申请公布日期
1977.04.28
申请号
DE19762646924
申请日期
1976.10.18
申请人
WESTERN ELECTRIC CO.,INC.
发明人
LOTON FLANAGAN,JAMES;JOHN MACLEAN,DONALD;EDWARD WEST,JAMES
分类号
H04M3/56;H04M9/08;(IPC1-7):H04M9/10;H04M1/60
主分类号
H04M3/56
代理机构
代理人
主权项
地址
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