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发明名称
Rechnergesteuerter anpassungsfähiger Lautfernsprecher.
摘要
申请公布号
DE68916218(D1)
申请公布日期
1994.07.21
申请号
DE19896016218
申请日期
1989.12.19
申请人
AMERICAN TELEPHONE AND TELEGRAPH CO., NEW YORK, N.Y.
发明人
ERVING, RICHARD HENRY, MONMOUTH COUNTY, NEW JERSEY 07740;FORD, WILLIAM ALBERT, FARMINGTON NEW JERSEY 07727;MILLER, ROBERT RAYMOND II, CONVENT STATION NEW JERSEY 07961
分类号
H04M1/19;H04M1/60;H04M9/08;(IPC1-7):H04M9/08
主分类号
H04M1/19
代理机构
代理人
主权项
地址
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