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经营范围
发明名称
VERFAHREN FÜR ERHÖRTE H.321-BASIERTE MULTIMEDIEN-KONFERENZDIENSTE ÜBER EINEM ATM WEITVERKEHRSNETZ
摘要
申请公布号
DE69838868(D1)
申请公布日期
2008.01.31
申请号
DE19986038868
申请日期
1998.03.19
申请人
AT & T CORP.
发明人
ROY, RADHIKA R.
分类号
H04Q11/04;H04L12/56;H04N7/14;H04N7/15
主分类号
H04Q11/04
代理机构
代理人
主权项
地址
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