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发明名称
MINE PIT PROP
摘要
申请公布号
PL241593(A1)
申请公布日期
1984.10.22
申请号
PL19830241593
申请日期
1983.04.20
申请人
CT KT MASZYN GORNICZYCH KOMAG
发明人
PRETOR WINCENTY;PELKA HUBERT;LIS ZBIGNIEW;SERWOTKA RYSZARD
分类号
E21D;(IPC1-7):E21D/
主分类号
E21D
代理机构
代理人
主权项
地址
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