Improvements in or relating to the manufacture of ring frames,申请号GB19500029941-传众专利搜索

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发明名称	Improvements in or relating to the manufacture of ring frames
摘要
申请公布号	GB702751(A)	申请公布日期	1954.01.20
申请号	GB19500029941	申请日期	1950.12.07
申请人	ALBERT EDWARD CROWHURST	发明人
分类号	B21D53/74	主分类号	B21D53/74
代理机构		代理人
主权项
地址

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