Screw propeller or turbine for water, air or gas,申请号GB19290030884-传众专利搜索

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发明名称	Screw propeller or turbine for water, air or gas
摘要
申请公布号	GB344871(A)	申请公布日期	1931.03.11
申请号	GB19290030884	申请日期	1929.10.11
申请人	AXEL HOLMSTROEM	发明人
分类号	B63H1/16	主分类号	B63H1/16
代理机构		代理人
主权项
地址

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