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发明名称
APPARATUS FOR PURIFICATION AND REPEATED DEPOSITION OF THE GRAVEL
摘要
申请公布号
CS254523(B1)
申请公布日期
1988.01.15
申请号
CS19860002460
申请日期
1986.04.05
申请人
HETES,KAREL,CS
发明人
HETES,KAREL,CS
分类号
E01B27/10;(IPC1-7):E01B27/10
主分类号
E01B27/10
代理机构
代理人
主权项
地址
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