Method of brazing heating coils,申请号US19280260458-传众专利搜索

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发明名称	Method of brazing heating coils
摘要
申请公布号	US1751865(A)	申请公布日期	1930.03.25
申请号	US19280260458	申请日期	1928.05.09
申请人	YORK HEATING AND VENTILATING CORPORATION	发明人	LEWIS ALEXANDER THORNTON;FRENCH DONALD E.
分类号	B23K1/00	主分类号	B23K1/00
代理机构		代理人
主权项
地址

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