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发明名称
PLUG BLAST HOLE
摘要
申请公布号
SU1560728(A1)
申请公布日期
1990.04.30
申请号
SU19874353712K
申请日期
1987.12.08
申请人
K.N.TKACHUK;I.A.FOMENKO I K.K.TKACHUK
发明人
TKACHUK KONSTANTIN NIFONTOVICH;FOMENKO IGOR ALEKSANDROVICH;TKACHUK KONSTANTIN KONSTANTINOVICH
分类号
E21C37/00
主分类号
E21C37/00
代理机构
代理人
主权项
地址
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