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发明名称
摘要
申请公布号
JPH0243488(Y2)
申请公布日期
1990.11.19
申请号
JP19840173968U
申请日期
1984.11.15
申请人
发明人
分类号
B02B7/02;(IPC1-7):B02B7/02
主分类号
B02B7/02
代理机构
代理人
主权项
地址
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