Justifying ruler for typewritten matter,申请号US19470758429-传众专利搜索

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法人/股东/高管

发明名称	Justifying ruler for typewritten matter
摘要
申请公布号	US2517159(A)	申请公布日期	1950.08.01
申请号	US19470758429	申请日期	1947.07.01
申请人	ALLEN HERBERT A	发明人	ALLEN HERBERT A.
分类号	B41J29/42	主分类号	B41J29/42
代理机构		代理人
主权项
地址

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