Positive displacement oscillating roller vane pump having constant delivery,申请号US19440549978-传众专利搜索

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发明名称	Positive displacement oscillating roller vane pump having constant delivery
摘要
申请公布号	US2465595(A)	申请公布日期	1949.03.29
申请号	US19440549978	申请日期	1944.08.18
申请人	KRATZER HERBERT J	发明人	KRATZER HERBERT J.
分类号	F04C2/44;F04C18/44	主分类号	F04C2/44
代理机构		代理人
主权项
地址

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