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发明名称
Improvements relating to screw impeller fans and pumps
摘要
申请公布号
GB500965(A)
申请公布日期
1939.02.20
申请号
GB19370022665
申请日期
1937.08.18
申请人
AEREX LIMITED;JENS ORTEN BOVING
发明人
分类号
F04D29/56
主分类号
F04D29/56
代理机构
代理人
主权项
地址
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