Apparatus for forming metal tubes to the shape of a frustum of a pyramid,申请号US19650448053-传众专利搜索

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发明名称	Apparatus for forming metal tubes to the shape of a frustum of a pyramid
摘要
申请公布号	US3354682(A)	申请公布日期	1967.11.28
申请号	US19650448053	申请日期	1965.04.14
申请人	ANTOINE DUPUY	发明人	DUPUY ANTOINE
分类号	B21B23/00;B21C37/15;B21C37/18	主分类号	B21B23/00
代理机构		代理人
主权项
地址

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