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发明名称
摘要
申请公布号
DE3214152(C2)
申请公布日期
1987.06.19
申请号
DE19823214152
申请日期
1982.04.17
申请人
AT & T TECHNOLOGIES, INC., NEW YORK, N.Y., US
发明人
BAXTER, LESLIE ALAN, EATONTOWN, N.J., US;BERKOWITZ, PAUL RICHARD, RED BANK, N.J., US;BUZZARD, CLAIR ALAN, LINCROFT, N.J., US
分类号
H04M3/56;H04Q11/04;(IPC1-7):H04Q11/04
主分类号
H04M3/56
代理机构
代理人
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