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发明名称
OPTICAL COUPLING DEVICE
摘要
申请公布号
JPH02298905(A)
申请公布日期
1990.12.11
申请号
JP19890118668
申请日期
1989.05.15
申请人
HITACHI LTD
发明人
SHIMAOKA MAKOTO;KUMAZAWA TETSUO;YAGYU YASUTOSHI;SASAYAMA ATSUSHI
分类号
G02B6/42
主分类号
G02B6/42
代理机构
代理人
主权项
地址
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