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发明名称
METHOD OF DRIVING A SLIDE-DOWN WAY
摘要
申请公布号
SU973841(A1)
申请公布日期
1982.11.15
申请号
SU19803236768
申请日期
1980.11.04
申请人
MIGAL VASILIJ K,SU
发明人
MIGAL VASILIJ K,SU
分类号
E21C41/00;(IPC1-7):E21C41/00
主分类号
E21C41/00
代理机构
代理人
主权项
地址
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