DRUCKSCHOCKFILTER, VORZUGSWEISE FUER DEN BERG- UND TUNNELBAU,申请号DE19770014840U-传众专利搜索

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发明名称	DRUCKSCHOCKFILTER, VORZUGSWEISE FUER DEN BERG- UND TUNNELBAU
摘要
申请公布号	DE7714840(U1)	申请公布日期	1978.02.02
申请号	DE19770014840U	申请日期	1977.05.11
申请人	HOELTER, HEINZ, 4390 GLADBECK	发明人
分类号	E21F5/20;(IPC1-7):E21F5/20	主分类号	E21F5/20
代理机构		代理人
主权项
地址

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