Needle threader for sewing machines,申请号US19490129928-传众专利搜索

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发明名称	Needle threader for sewing machines
摘要
申请公布号	US2542313(A)	申请公布日期	1951.02.20
申请号	US19490129928	申请日期	1949.11.29
申请人	CHRISTOFF EMERY J	发明人	CHRISTOFF EMERY J.
分类号	D05B87/00	主分类号	D05B87/00
代理机构		代理人
主权项
地址

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