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经营范围
发明名称
DRY PUMP WITH CLOSED LOOP FILTER
摘要
申请公布号
GB8809621(D0)
申请公布日期
1988.05.25
申请号
GB19880009621
申请日期
1988.04.22
申请人
BOC GROUP PLC
发明人
分类号
F04B39/16;F04B37/16;F04C25/02;F04C29/00
主分类号
F04B39/16
代理机构
代理人
主权项
地址
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