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发明名称
RING-SHAPED LIGHT PROJECTING DEVICE
摘要
申请公布号
JPH02309312(A)
申请公布日期
1990.12.25
申请号
JP19890130256
申请日期
1989.05.25
申请人
MACHIDA SEISAKUSHO:KK
发明人
FUSE JIRO
分类号
G02B27/09;G02B27/00
主分类号
G02B27/09
代理机构
代理人
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地址
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