STABROST ZUR ABDECKUNG VON OEFFNUNGEN, GRUBEN O.DGL.,申请号DE19722244661-传众专利搜索

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发明名称	STABROST ZUR ABDECKUNG VON OEFFNUNGEN, GRUBEN O.DGL.
摘要
申请公布号	DE2244661(B2)	申请公布日期	1977.06.30
申请号	DE19722244661	申请日期	1972.09.12
申请人		发明人
分类号	E04C2/42;E04F19/10;(IPC1-7):E04C2/42	主分类号	E04C2/42
代理机构		代理人
主权项
地址

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