Improvements in apparatus for draining or irrigating land,申请号GB19480004377-传众专利搜索

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发明名称	Improvements in apparatus for draining or irrigating land
摘要
申请公布号	GB639349(A)	申请公布日期	1950.06.28
申请号	GB19480004377	申请日期	1948.02.14
申请人	OSWALD HANDEL;JOSEPH PASTERNY	发明人
分类号	E02D19/10	主分类号	E02D19/10
代理机构		代理人
主权项
地址

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