Pen control mechanism for paper ruling machine,申请号US19440524766-传众专利搜索

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发明名称	Pen control mechanism for paper ruling machine
摘要
申请公布号	US2448285(A)	申请公布日期	1948.08.31
申请号	US19440524766	申请日期	1944.03.02
申请人	THE W. O. HICKOK MFG. CO.	发明人	THOMPSON ROBERT J.
分类号	B41G3/00	主分类号	B41G3/00
代理机构		代理人
主权项
地址

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