Blotter pad and the like,申请号US19400315050-传众专利搜索

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发明名称	Blotter pad and the like
摘要
申请公布号	US2231751(A)	申请公布日期	1941.02.11
申请号	US19400315050	申请日期	1940.01.22
申请人	DE BEERS FRANKLIN M	发明人	BEERS FRANKLIN M. DE
分类号	B43L3/00	主分类号	B43L3/00
代理机构		代理人
主权项
地址

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