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发明名称
ZAWIESIE PODCIAGOW GORNICZYCH
摘要
申请公布号
PL107080(B1)
申请公布日期
1980.01.31
申请号
PL19770203386
申请日期
1977.12.24
申请人
发明人
分类号
E21D;E21D11/22;(IPC1-7):E21D11/22
主分类号
E21D
代理机构
代理人
主权项
地址
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