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发明名称
VORGESTEUERTES MEHRWEGEVENTIL, INSBESONDERE FUER DEN HYDRAULISCHEN STREBAUSBAU IM STEINKOHLENBERGBAU
摘要
申请公布号
DE2252956(A1)
申请公布日期
1974.05.09
申请号
DE19722252956
申请日期
1972.10.28
申请人
BERGWERKSVERBAND GMBH, 4300 ESSEN
发明人
KOLLER, KARL-HEINZ, 5628 HEILIGENHAUS;LERNER, HUBERT, 4630 BOCHUM;GRAEWE, FRIEDRICH, 4690 HERNE
分类号
E21D15/51;F16K31/383;(IPC1-7):F16K11/10;E21D23/16
主分类号
E21D15/51
代理机构
代理人
主权项
地址
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