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经营范围
发明名称
MINE WORKING SUPPORT
摘要
申请公布号
SU1461970(A1)
申请公布日期
1989.02.28
申请号
SU19864159348
申请日期
1986.12.11
申请人
ZYRYANOVSKIJ SVINTSOVYJ KOMBINAT IM.60-LETIYA SSSR
发明人
KRASOVSKIJ ROMAN S,SU;GOLOVATYJ NIKOLAJ I,SU
分类号
E21D11/14
主分类号
E21D11/14
代理机构
代理人
主权项
地址
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