Improvements relating to the treading of tyres,申请号GB19380023439-传众专利搜索

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发明名称	Improvements relating to the treading of tyres
摘要
申请公布号	GB499294(A)	申请公布日期	1939.01.20
申请号	GB19380023439	申请日期	1938.08.09
申请人	PAUL EDWARD HANKINSON	发明人
分类号	B29D30/54	主分类号	B29D30/54
代理机构		代理人
主权项
地址

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