Frictional resistance testing apparatus,申请号US19410373394-传众专利搜索

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发明名称	Frictional resistance testing apparatus
摘要
申请公布号	US2354923(A)	申请公布日期	1944.08.01
申请号	US19410373394	申请日期	1941.01.07
申请人	THE SUPERIOR OIL COMPANY	发明人	MCNAMEE BERNARD F.
分类号	G01N11/14	主分类号	G01N11/14
代理机构		代理人
主权项
地址

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