Method of making margin stops for typewriting machines,申请号US19330674065-传众专利搜索

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发明名称	Method of making margin stops for typewriting machines
摘要
申请公布号	US1958298(A)	申请公布日期	1934.05.08
申请号	US19330674065	申请日期	1933.06.02
申请人	ROYAL TYPEWRITER COMPANY, INC.	发明人	DOWD BERNARD J.
分类号	B21D53/00;B41J29/50	主分类号	B21D53/00
代理机构		代理人
主权项
地址

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