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发明名称
METHOD OF ELIMINATING SUDDEN SURGES OF WATER TO WORKING FACE OF A WORKING BEING DRIVEN
摘要
申请公布号
SU1401142(A1)
申请公布日期
1988.06.07
申请号
SU19864124865
申请日期
1986.09.20
申请人
SPETSIALIZIROVANNOE PROIZV GEOLOGICHESKOE OB PO TAMPONAZHNYM GEOLOGORAZVEDOCHNYM RABOTAM "SPETSTAMPONAZHGEOLOGIYA"
发明人
KIPKO ERNEST YA,SU;POLOZOV YURIJ A,SU;SPICHAK YURIJ N,SU
分类号
E21D11/38
主分类号
E21D11/38
代理机构
代理人
主权项
地址
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