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发明名称
摘要
申请公布号
JPH0291647(U)
申请公布日期
1990.07.20
申请号
JP19890000424U
申请日期
1989.01.06
申请人
发明人
分类号
B03C3/45;(IPC1-7):B03C3/45
主分类号
B03C3/45
代理机构
代理人
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地址
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