Improvements in or relating to pumps,申请号GB19390001767-传众专利搜索

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发明名称	Improvements in or relating to pumps
摘要
申请公布号	GB506716(A)	申请公布日期	1939.05.30
申请号	GB19390001767	申请日期	1937.11.30
申请人	OSKAR POSCH	发明人
分类号	F04C2/04;F04C14/22	主分类号	F04C2/04
代理机构		代理人
主权项
地址

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