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发明名称
Liquid ring pumps
摘要
申请公布号
GB0222772(D0)
申请公布日期
2002.11.06
申请号
GB20020022772
申请日期
2002.10.02
申请人
BOWMAKER, JOSHUA G
发明人
分类号
主分类号
代理机构
代理人
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