Safety paper and the like,申请号US19320624053-传众专利搜索

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发明名称	Safety paper and the like
摘要
申请公布号	US2061632(A)	申请公布日期	1936.11.24
申请号	US19320624053	申请日期	1932.07.22
申请人	E. I. DU PONT DE NEMOURS & COMPANY	发明人	LENHER SAMUEL
分类号	D21H21/46	主分类号	D21H21/46
代理机构		代理人
主权项
地址

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