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经营范围
发明名称
OPTISCHER VERTEILER.
摘要
申请公布号
DE3876344(D1)
申请公布日期
1993.01.14
申请号
DE19883876344
申请日期
1988.09.09
申请人
BRITISH TELECOMMUNICATIONS P.L.C., LONDON, GB
发明人
HEALEY, PETER, IPSWICH SUFFOLK IP4 4RQ, GB
分类号
G02B6/28;G02F1/31;H04B10/02;H04Q3/52;(IPC1-7):H04B10/00
主分类号
G02B6/28
代理机构
代理人
主权项
地址
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