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经营范围
发明名称
HERMETISCHE OPTISCHE VEZELDOORVOER.
摘要
申请公布号
NL8003100(A)
申请公布日期
1981.01.27
申请号
NL19800003100
申请日期
1980.05.29
申请人
NORTHERN TELECOM LIMITED TE MONTREAL, CANADA.
发明人
分类号
G02B6/00;G02B6/42;G02B6/44;(IPC1-7):G02B7/26
主分类号
G02B6/00
代理机构
代理人
主权项
地址
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