Valve mechanism for measuring pumps,申请号US19280306422-传众专利搜索

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发明名称	Valve mechanism for measuring pumps
摘要
申请公布号	US1744186(A)	申请公布日期	1930.01.21
申请号	US19280306422	申请日期	1928.09.17
申请人	THE AMERICAN OIL COMPANY	发明人	WAKEFIELD ARTHUR T.
分类号	G01F11/04	主分类号	G01F11/04
代理机构		代理人
主权项
地址

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