Ball staking machine for pen tips,申请号US19470721389-传众专利搜索

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发明名称	Ball staking machine for pen tips
摘要
申请公布号	US2609774(A)	申请公布日期	1952.09.09
申请号	US19470721389	申请日期	1947.01.10
申请人	FRED FERBER	发明人	FERBER FRED
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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