METHOD AND DEVICE FOR MEASURING FRICTION DEGREE,申请号JP19890075517-传众专利搜索

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发明名称	METHOD AND DEVICE FOR MEASURING FRICTION DEGREE
摘要
申请公布号	JPH02254617(A)	申请公布日期	1990.10.15
申请号	JP19890075517	申请日期	1989.03.28
申请人	SUMITOMO METAL IND LTD	发明人	YAMAKI TAKAHIRO
分类号	G01N25/20;G01N19/02;G11B5/455	主分类号	G01N25/20
代理机构		代理人
主权项
地址

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