MASK FOR WORKING FREE ABRASIVE GRAIN,申请号JP19890171709-传众专利搜索

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发明名称	MASK FOR WORKING FREE ABRASIVE GRAIN
摘要
申请公布号	JPH0335975(A)	申请公布日期	1991.02.15
申请号	JP19890171709	申请日期	1989.07.03
申请人	SONY CORP	发明人	KURODA MASAYUKI;MISHIMA AKIO;KOJIMA NAOTO
分类号	B24C1/04	主分类号	B24C1/04
代理机构		代理人
主权项
地址

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