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发明名称
VACUUM PUMP
摘要
<p>A rotating vane vacuum pump has a secondary inlet (4) which permits additional suction after the primary inlet (3) has closed.</p>
申请公布号
WO2003056184(A1)
申请公布日期
2003.07.10
申请号
GB2002005717
申请日期
2002.12.17
申请人
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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