Nachgiebiger Streckenausbau unter Verwendung von Hohlkoerpern mit koernigem Gut,申请号DE1957E014139-传众专利搜索

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发明名称	Nachgiebiger Streckenausbau unter Verwendung von Hohlkoerpern mit koernigem Gut
摘要
申请公布号	DE1030800(B)	申请公布日期	1958.05.29
申请号	DE1957E014139	申请日期	1957.05.16
申请人	ESSENER STEINKOHLENBERGWERKE AKTIENGESELLSCHAFT	发明人	HOEVELS DR.-ING. WERNER;KREUTZER DIPL.-ING. KARL;DITTRICH DIPL.-ING. OSKAR
分类号	E21D11/18;E21D15/18	主分类号	E21D11/18
代理机构		代理人
主权项
地址

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