Ribbon reverse mechanism,申请号US19410377642-传众专利搜索

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发明名称	Ribbon reverse mechanism
摘要
申请公布号	US2257553(A)	申请公布日期	1941.09.30
申请号	US19410377642	申请日期	1941.02.06
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	HEPT JOHN ANTHONY
分类号	B41J33/518	主分类号	B41J33/518
代理机构		代理人
主权项
地址

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