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经营范围
发明名称
SILTING PIPELINE
摘要
申请公布号
PL134331(B2)
申请公布日期
1985.08.31
申请号
PL19830242518
申请日期
1983.06.13
申请人
发明人
分类号
E02F;E02F7/10;(IPC1-7):E02F7/10
主分类号
E02F
代理机构
代理人
主权项
地址
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