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经营范围
发明名称
Tangentialströmungs-Pumpkanal für Turbomolekularpumpen
摘要
申请公布号
DE69407275(T2)
申请公布日期
1998.04.02
申请号
DE19946007275T
申请日期
1994.09.12
申请人
VARIAN ASSOCIATES, INC., PALO ALTO, CALIF., US
发明人
HELMER, JOHN C., US-MENLO PARK, CA. 94028, US;LEVI, GIAMPAOLO, I-10143 TURIN, IT
分类号
F04D19/04;(IPC1-7):F04D19/04
主分类号
F04D19/04
代理机构
代理人
主权项
地址
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