Thread pull-off mechanism for sewing machines,申请号US19450611724-传众专利搜索

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发明名称	Thread pull-off mechanism for sewing machines
摘要
申请公布号	US2438833(A)	申请公布日期	1948.03.30
申请号	US19450611724	申请日期	1945.08.21
申请人	THE SINGER MANUFACTURING COMPANY	发明人	WOOD ALFRED R.
分类号	D05B3/08;D05B57/00;D05B73/12	主分类号	D05B3/08
代理机构		代理人
主权项
地址

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