ERASER COMPOSITIONS CONTAINING RUBBER POLYISOBUTYLENE AND AN ABRASIVE,申请号CAD581909-传众专利搜索

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发明名称	ERASER COMPOSITIONS CONTAINING RUBBER POLYISOBUTYLENE AND AN ABRASIVE
摘要
申请公布号	CA581909(A)	申请公布日期	1959.08.25
申请号	CAD581909	申请日期
申请人	NAOMI M. BURROWS	发明人	CHARLES L. SMITH;BENSON G. BRAND
分类号		主分类号
代理机构		代理人
主权项
地址

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