Margin justifying device for typewriters,申请号US19440533518-传众专利搜索

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发明名称	Margin justifying device for typewriters
摘要
申请公布号	US2454470(A)	申请公布日期	1948.11.23
申请号	US19440533518	申请日期	1944.05.01
申请人	MARTIN OLIVER O	发明人	MARTIN OLIVER O.
分类号	B41J19/64	主分类号	B41J19/64
代理机构		代理人
主权项
地址

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