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发明名称
OPTICAL SYSTEM
摘要
申请公布号
JPS5255422(U)
申请公布日期
1977.04.21
申请号
JP19750142230U
申请日期
1975.10.17
申请人
发明人
分类号
A47B96/07;A47B96/06;(IPC1-7):A47B96/06
主分类号
A47B96/07
代理机构
代理人
主权项
地址
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