Blank for and method of making writing pens,申请号US19350025468-传众专利搜索

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发明名称	Blank for and method of making writing pens
摘要
申请公布号	US2168311(A)	申请公布日期	1939.08.08
申请号	US19350025468	申请日期	1935.06.07
申请人	THE ESTERBROOK STEEL PEN MANUFACTURING COMPANY	发明人	ASHMORE LEON HEHL
分类号	B21D53/76	主分类号	B21D53/76
代理机构		代理人
主权项
地址

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