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发明名称
A method and a device to improve the volumetric efficiency of root's blowers
摘要
申请公布号
GB772350(A)
申请公布日期
1957.04.10
申请号
GB19550026116
申请日期
1955.09.13
申请人
HANOMAG AKTIENGESELLSCHAFT
发明人
STANKEWITZ LEO
分类号
F04C27/00
主分类号
F04C27/00
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