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发明名称
METHOD AND DEVICE FOR SECURING PASSAGE OF LIGHT
摘要
申请公布号
JPH0634911(A)
申请公布日期
1994.02.10
申请号
JP19920212017
申请日期
1992.07.16
申请人
FUJITA CORP
发明人
TAKAYAMA TAKEO
分类号
G02B27/00;G03B17/08;(IPC1-7):G02B27/00
主分类号
G02B27/00
代理机构
代理人
主权项
地址
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