FLAT VALVE BAG,申请号CAD645606-传众专利搜索

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发明名称	FLAT VALVE BAG
摘要
申请公布号	CA645606(A)	申请公布日期	1962.07.24
申请号	CAD645606	申请日期
申请人	DU PONT OF CANADA LIMITED	发明人	RICHARD J. TOMSON
分类号		主分类号
代理机构		代理人
主权项
地址

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