METHOD OF AND APPARATUS FOR PRODUCING SPIRAL PIPE,申请号CAD658258-传众专利搜索

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发明名称	METHOD OF AND APPARATUS FOR PRODUCING SPIRAL PIPE
摘要
申请公布号	CA658258(A)	申请公布日期	1963.02.26
申请号	CAD658258	申请日期
申请人	LAURENCE J. BERKELEY	发明人	LAURENCE J. BERKELEY
分类号		主分类号
代理机构		代理人
主权项
地址

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