Drain zur Verminderung des Wassergehaltes in einem Boden mit geringer Wasserdurchlässigkeit.,申请号CHD266833-传众专利搜索

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发明名称	Drain zur Verminderung des Wassergehaltes in einem Boden mit geringer Wasserdurchlässigkeit.
摘要
申请公布号	CH266833(A)	申请公布日期	1950.02.28
申请号	CHD266833	申请日期	1947.12.09
申请人	KJELLMAN,WALTER	发明人	KJELLMAN,WALTER
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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