METHOD FOR MAKING A SPIRAL SEAMED CORRUGATED LAMINATED PIPE WITH UNCORRUGATED INTERIOR,申请号USD3487537-传众专利搜索

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发明名称	METHOD FOR MAKING A SPIRAL SEAMED CORRUGATED LAMINATED PIPE WITH UNCORRUGATED INTERIOR
摘要
申请公布号	US3487537(A)	申请公布日期	1970.01.06
申请号	USD3487537	申请日期	1967.06.01
申请人	JACK P. LOMBARDI	发明人	JACK P. LOMBARDI
分类号	B21C37/12;F16L9/06;F16L9/16;(IPC1-7):B21D13/04;B21H7/00	主分类号	B21C37/12
代理机构		代理人
主权项
地址

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