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发明名称
COMPUTER CONTROLLED ADAPTIVE SPEAKERPHONE
摘要
申请公布号
AU615820(B2)
申请公布日期
1991.10.10
申请号
AU19890047216
申请日期
1989.12.22
申请人
AMERICAN TELEPHONE AND TELEGRAPH COMPANY
发明人
RICHARD HENRY ERVING;WILLIAM ALBERT FORD;ROBERT RAYMOND MILLER II
分类号
H04M1/19;H04M1/60;H04M9/08;(IPC1-7):H04M1/00;H04B1/46;H04B3/20
主分类号
H04M1/19
代理机构
代理人
主权项
地址
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