Electrically operated typewriter with constantly rotating type wheel,申请号US19470741298-传众专利搜索

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发明名称	Electrically operated typewriter with constantly rotating type wheel
摘要
申请公布号	US2446851(A)	申请公布日期	1948.08.10
申请号	US19470741298	申请日期	1947.04.14
申请人	DOEH DEVELOPMENT CO.	发明人	RUDERFER MARTIN
分类号	B41J1/54	主分类号	B41J1/54
代理机构		代理人
主权项
地址

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