Improvements relating to the laying of underground piping, especially water mains,申请号GB19620028852-传众专利搜索

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发明名称	Improvements relating to the laying of underground piping, especially water mains
摘要
申请公布号	GB976421(A)	申请公布日期	1964.11.25
申请号	GB19620028852	申请日期	1962.07.27
申请人	EDWARD ARTHUR YATES;JOHN EDWARD YATES;ALFRED CYRIL YATES	发明人
分类号	E02F5/10;H02G1/06	主分类号	E02F5/10
代理机构		代理人
主权项
地址

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