Protective strip for record cards,申请号US19310536903-传众专利搜索

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发明名称	Protective strip for record cards
摘要
申请公布号	US1835988(A)	申请公布日期	1931.12.08
申请号	US19310536903	申请日期	1931.05.12
申请人	REMINGTON RAND INC.	发明人	HEISINGER WILHELM H.
分类号	B42F19/00	主分类号	B42F19/00
代理机构		代理人
主权项
地址

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