Procédé de fabrication de produits abrasifs,申请号FRD780335-传众专利搜索

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发明名称	Procédé de fabrication de produits abrasifs
摘要
申请公布号	FR780335(A)	申请公布日期	1935.04.23
申请号	FRD780335	申请日期	1934.09.21
申请人	NORTON COMPANY	发明人
分类号	C01F7/40	主分类号	C01F7/40
代理机构		代理人
主权项
地址

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