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经营范围
发明名称
Screw vacuum pump
摘要
申请公布号
EP0523551(B1)
申请公布日期
1997.02.05
申请号
EP19920111698
申请日期
1992.07.09
申请人
EBARA CORPORATION
发明人
SHIMIZU, NOBURU;YANAGISAWA, KIYOSHI
分类号
F04C23/00;F04C25/02;F04C29/12;(IPC1-7):F04C18/16;F04C29/08
主分类号
F04C23/00
代理机构
代理人
主权项
地址
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