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发明名称
摘要
申请公布号
JPS6396552(U)
申请公布日期
1988.06.22
申请号
JP19860191481U
申请日期
1986.12.12
申请人
发明人
分类号
G03B27/62;G03B27/32;(IPC1-7):G03B27/62
主分类号
G03B27/62
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代理人
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