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发明名称
Устройство для обнаружения границ уголь-порода
摘要
申请公布号
SU141956(A1)
申请公布日期
1961.11.30
申请号
SU19610695354
申请日期
1961.01.28
申请人
发明人
MELIMUK V.P.
分类号
G01V3/12
主分类号
G01V3/12
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代理人
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