Rate indicator,申请号US19380212741-传众专利搜索

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发明名称	Rate indicator
摘要
申请公布号	US2216737(A)	申请公布日期	1940.10.08
申请号	US19380212741	申请日期	1938.06.09
申请人	CRANE CARL J;NESBITT FRANCIS G	发明人	CRANE CARL J.;NESBITT FRANCIS G.
分类号	G01F9/02	主分类号	G01F9/02
代理机构		代理人
主权项
地址

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