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发明名称
摘要
申请公布号
AU3323468(A)
申请公布日期
1970.08.06
申请号
AU19680033234
申请日期
1969.02.05
申请人
发明人
分类号
E03D1/33;F16K31/24
主分类号
E03D1/33
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