Apparatus for testing friction,申请号US19440539249-传众专利搜索

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发明名称	Apparatus for testing friction
摘要
申请公布号	US2486280(A)	申请公布日期	1949.10.25
申请号	US19440539249	申请日期	1944.06.08
申请人	WILLIAM WALKER AND SONS LIMITED	发明人	HAUSMANN FREDERICK
分类号	G01N19/02	主分类号	G01N19/02
代理机构		代理人
主权项
地址

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