Improvements in or relating to gear pumps,申请号GB19550014331-传众专利搜索

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发明名称	Improvements in or relating to gear pumps
摘要
申请公布号	GB769763(A)	申请公布日期	1957.03.13
申请号	GB19550014331	申请日期	1955.05.18
申请人	AIR-EQUIPEMENT	发明人
分类号	F04C2/08;F04C15/00	主分类号	F04C2/08
代理机构		代理人
主权项
地址

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