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发明名称
CIRCUMFERENTIAL CHANNEL VACUUM PUMP
摘要
申请公布号
JPH02163496(A)
申请公布日期
1990.06.22
申请号
JP19880316227
申请日期
1988.12.16
申请人
OSAKA SHINKU KIKI SEISAKUSHO:KK
发明人
IKEGAMI TATSUJI;OBAYASHI TETSUO;YOSHIDA KEIICHI;IGUCHI MASASHI
分类号
F04D17/10;F04D19/04;F04D23/00
主分类号
F04D17/10
代理机构
代理人
主权项
地址
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