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发明名称
METHOD OF SILTING UP AN EARTH DAM
摘要
申请公布号
PL242322(A2)
申请公布日期
1984.05.21
申请号
PL19830242322
申请日期
1983.06.01
申请人
GORNICZO HUTNICZY MIEDZI
发明人
DAWID STEFAN
分类号
E02B;E02B7/06;(IPC1-7):E02B/
主分类号
E02B
代理机构
代理人
主权项
地址
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