Clean tip for typewriter ribbons,申请号US19410377736-传众专利搜索

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发明名称	Clean tip for typewriter ribbons
摘要
申请公布号	US2276324(A)	申请公布日期	1942.03.17
申请号	US19410377736	申请日期	1941.02.06
申请人	PHILLIPS RIBBON & CARBON CO. INC.	发明人	MANN HESSINA
分类号	B41J31/10	主分类号	B41J31/10
代理机构		代理人
主权项
地址

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