Duplex double-acting steam pump,申请号US19480022036-传众专利搜索

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发明名称	Duplex double-acting steam pump
摘要
申请公布号	US2619038(A)	申请公布日期	1952.11.25
申请号	US19480022036	申请日期	1948.04.20
申请人	DAVIDSON FRANK J	发明人	DAVIDSON FRANK J.
分类号	F04B5/02	主分类号	F04B5/02
代理机构		代理人
主权项
地址

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