Differential gas balance,申请号US19240708598-传众专利搜索

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发明名称	Differential gas balance
摘要
申请公布号	US1877738(A)	申请公布日期	1932.09.13
申请号	US19240708598	申请日期	1924.04.23
申请人	REPUBLIC FLOW METERS CO.	发明人	CUNNINGHAM ARTHUR B.
分类号	G01N9/26	主分类号	G01N9/26
代理机构		代理人
主权项
地址

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