Improvements in sub-soil drains,申请号GB19610029062-传众专利搜索

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发明名称	Improvements in sub-soil drains
摘要
申请公布号	GB956046(A)	申请公布日期	1964.04.22
申请号	GB19610029062	申请日期	1961.08.11
申请人	THE HEPWORTH IRON COMPANY LIMITED	发明人	CARTER RAYMOND CHARLES;KAYE FRANK
分类号	E02B11/00	主分类号	E02B11/00
代理机构		代理人
主权项
地址

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