Pumping machinery,申请号US19380195306-传众专利搜索

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发明名称	Pumping machinery
摘要
申请公布号	US2177159(A)	申请公布日期	1939.10.24
申请号	US19380195306	申请日期	1938.03.11
申请人	STALKER EDWARD A	发明人	STALKER EDWARD A.
分类号	F04D17/02;F04D17/12;F04D29/68	主分类号	F04D17/02
代理机构		代理人
主权项
地址

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