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经营范围
发明名称
摘要
申请公布号
JPS636437(U)
申请公布日期
1988.01.16
申请号
JP19860100493U
申请日期
1986.06.30
申请人
发明人
分类号
G03B19/02;G03C3/00;(IPC1-7):G03B19/02
主分类号
G03B19/02
代理机构
代理人
主权项
地址
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