DIFFERENTIAL PRESSURE-RESPONSIVE DEVICE FOR MEASURING FLUID FLOW RATE INCLUDING A SHAPED SPRING FOR SQUARE ROOT EXTRACTION,申请号USD3521486-传众专利搜索

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发明名称	DIFFERENTIAL PRESSURE-RESPONSIVE DEVICE FOR MEASURING FLUID FLOW RATE INCLUDING A SHAPED SPRING FOR SQUARE ROOT EXTRACTION
摘要
申请公布号	US3521486(A)	申请公布日期	1970.07.21
申请号	USD3521486	申请日期	1968.07.05
申请人	PENNWALT CORP.	发明人	WILLIAM C. CONKLING
分类号	G01F1/38;G01L9/00;(IPC1-7):G01F1/08;F16F1/22	主分类号	G01F1/38
代理机构		代理人
主权项
地址

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