Specific gravity meter,申请号US19490120839-传众专利搜索

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发明名称	Specific gravity meter
摘要
申请公布号	US2688868(A)	申请公布日期	1954.09.14
申请号	US19490120839	申请日期	1949.10.12
申请人	CONTINENTAL OIL COMPANY	发明人	ELKINS LINCOLN F.
分类号	G01N9/04;G01N9/10	主分类号	G01N9/04
代理机构		代理人
主权项
地址

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