Method of perforating a heated billet and disc,申请号US19520304382-传众专利搜索

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发明名称	Method of perforating a heated billet and disc
摘要
申请公布号	US2765528(A)	申请公布日期	1956.10.09
申请号	US19520304382	申请日期	1952.08.14
申请人	COMPTOIR INDUSTRIEL D'ETIRAGE ET PROFILAGE DE METAUX	发明人	BUFFET JEAN
分类号	B21J5/10	主分类号	B21J5/10
代理机构		代理人
主权项
地址

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