DIFFERENTIAL PRESSURE APPARATUS FOR MEASURING FLUID DENSITY,申请号USD3486380-传众专利搜索

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发明名称	DIFFERENTIAL PRESSURE APPARATUS FOR MEASURING FLUID DENSITY
摘要
申请公布号	US3486380(A)	申请公布日期	1969.12.30
申请号	USD3486380	申请日期	1967.12.21
申请人	DRESSER IND. INC.	发明人	RICHARD B. CULVER
分类号	E21B47/06;G01L7/18;G01N9/26;(IPC1-7):G01L9/00	主分类号	E21B47/06
代理机构		代理人
主权项
地址

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