Perfectionnements aux boulets d'étirage,申请号FRD847640-传众专利搜索

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发明名称	Perfectionnements aux boulets d'étirage
摘要
申请公布号	FR847640(A)	申请公布日期	1939.10.12
申请号	FRD847640	申请日期	1938.12.16
申请人	COMPAGNIE FRANCAISE POUR L'EXPLOITATION DES PROCEDES THOMSON-HOUSTON	发明人
分类号	B21C3/16	主分类号	B21C3/16
代理机构		代理人
主权项
地址

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