Radius curved duct fittings with snaplock,申请号US19600011304-传众专利搜索

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发明名称	Radius curved duct fittings with snaplock
摘要
申请公布号	US3074459(A)	申请公布日期	1963.01.22
申请号	US19600011304	申请日期	1960.02.26
申请人	METROPOLITAN OIL & GAS INDUSTRIES INC.	发明人	PAVIA ROBERT
分类号	B21C37/28;F16L43/00	主分类号	B21C37/28
代理机构		代理人
主权项
地址

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