METHOD OF,AND APPARATUS FOR,PRODUCING DOUBLE WALL TUBES,申请号GB19920004191-传众专利搜索

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发明名称	METHOD OF,AND APPARATUS FOR,PRODUCING DOUBLE WALL TUBES
摘要
申请公布号	GB9204191(D0)	申请公布日期	1992.04.08
申请号	GB19920004191	申请日期	1992.02.27
申请人	HENTZSCHEL, ERHARD;ULRICH, MATTHAEUS	发明人
分类号	B21C37/09	主分类号	B21C37/09
代理机构		代理人
主权项
地址

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