Stützelement, bestehend aus mindestens zwei mit Flanschen versehenen Rinnenprofilstücken, insbesondere für den nachgiebigen Grubenausbau.,申请号CHD300473-传众专利搜索

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发明名称	Stützelement, bestehend aus mindestens zwei mit Flanschen versehenen Rinnenprofilstücken, insbesondere für den nachgiebigen Grubenausbau.
摘要
申请公布号	CH300473(A)	申请公布日期	1954.08.15
申请号	CHD300473	申请日期	1951.07.03
申请人	BOCHUMER EISENHUETTE HEINTZMANN & CO.	发明人	CO. BOCHUMER EISENHUETTE HEINTZMANN &
分类号	E21D11/20	主分类号	E21D11/20
代理机构		代理人
主权项
地址

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