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发明名称
摘要
申请公布号
JPH0112262(Y2)
申请公布日期
1989.04.11
申请号
JP19810025645U
申请日期
1981.02.25
申请人
发明人
分类号
G03D17/00;(IPC1-7):G03D17/00
主分类号
G03D17/00
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代理人
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