Process for the manufacture of seamless tubes by the thrust bench method from open and perforated blanks,申请号US19530329958-传众专利搜索

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发明名称	Process for the manufacture of seamless tubes by the thrust bench method from open and perforated blanks
摘要
申请公布号	US2819790(A)	申请公布日期	1958.01.14
申请号	US19530329958	申请日期	1953.01.07
申请人	ALBERTO CALMES;EMILIO DVORAK	发明人	CALMES ALBERTO;DVORAK EMILIO
分类号	B21C5/00	主分类号	B21C5/00
代理机构		代理人
主权项
地址

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