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发明名称
BALANCED OPTICAL SYSTEM
摘要
申请公布号
GB8625392(D0)
申请公布日期
1987.02.04
申请号
GB19860025392
申请日期
1986.10.23
申请人
FERRANTI PLC
发明人
分类号
G02B7/182;G02B27/64
主分类号
G02B7/182
代理机构
代理人
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