Improvements in or relating to rotary hooks for sewing machines,申请号GB19470022507-传众专利搜索

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发明名称	Improvements in or relating to rotary hooks for sewing machines
摘要
申请公布号	GB625635(A)	申请公布日期	1949.06.30
申请号	GB19470022507	申请日期	1947.08.13
申请人	FREE SEWING MACHINE CO.	发明人
分类号	D05B57/14	主分类号	D05B57/14
代理机构		代理人
主权项
地址

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