Tension indicator for threads on sewing machines,申请号US19460642760-传众专利搜索

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发明名称	Tension indicator for threads on sewing machines
摘要
申请公布号	US2457245(A)	申请公布日期	1948.12.28
申请号	US19460642760	申请日期	1946.01.22
申请人	LARSON ALBERT H;FOX CHARLES W	发明人	LARSON ALBERT H.;FOX CHARLES W.
分类号	D05B47/06	主分类号	D05B47/06
代理机构		代理人
主权项
地址

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