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发明名称
摘要
申请公布号
JPS5944606(B2)
申请公布日期
1984.10.31
申请号
JP19790015203
申请日期
1979.02.13
申请人
NIPPON TELEGRAPH & TELEPHONE
发明人
MATSUMOTO TAKAO
分类号
G02B27/28;G02F1/31
主分类号
G02B27/28
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