Knee-control mechanism for electric sewing machines,申请号US19320619203-传众专利搜索

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发明名称	Knee-control mechanism for electric sewing machines
摘要
申请公布号	US1947827(A)	申请公布日期	1934.02.20
申请号	US19320619203	申请日期	1932.06.25
申请人	THE SINGER MANUFACTURING COMPANY	发明人	CHASON DANIEL H.
分类号	D05B69/18	主分类号	D05B69/18
代理机构		代理人
主权项
地址

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