Improvements in and relating to screw propeller pumps and fans,申请号GB19380005965-传众专利搜索

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发明名称	Improvements in and relating to screw propeller pumps and fans
摘要
申请公布号	GB500402(A)	申请公布日期	1939.02.08
申请号	GB19380005965	申请日期	1938.02.25
申请人	DRYSDALE & COMPANY, LIMITED;HUBERT MAWSON	发明人
分类号	F04D3/00	主分类号	F04D3/00
代理机构		代理人
主权项
地址

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