Rotary hook sewing machine thread case,申请号US19380201893-传众专利搜索

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发明名称	Rotary hook sewing machine thread case
摘要
申请公布号	US2154403(A)	申请公布日期	1939.04.11
申请号	US19380201893	申请日期	1938.04.14
申请人	THE SINGER MANUFACTURING COMPANY	发明人	KARLE JOHN D.
分类号	D05B57/26	主分类号	D05B57/26
代理机构		代理人
主权项
地址

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