Procédé et appareil pour préparer des tubes à extrémités évasées et des manchons pour ces tubes,申请号FRD850906-传众专利搜索

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发明名称	Procédé et appareil pour préparer des tubes à extrémités évasées et des manchons pour ces tubes
摘要
申请公布号	FR850906(A)	申请公布日期	1939.12.29
申请号	FRD850906	申请日期	1939.02.27
申请人		发明人	PARKER ARTHUR LA RUE
分类号	B21D39/04	主分类号	B21D39/04
代理机构		代理人
主权项
地址

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