Improvements in the manufacture of tubes,申请号GB19310022406-传众专利搜索

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发明名称	Improvements in the manufacture of tubes
摘要
申请公布号	GB381651(A)	申请公布日期	1932.10.13
申请号	GB19310022406	申请日期	1931.08.07
申请人	WELLMAN SEAVER ROLLING MILL COMPANY, LIMITED;SYDNEY SMITH	发明人
分类号	B21B17/14	主分类号	B21B17/14
代理机构		代理人
主权项
地址

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