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发明名称
ROTARY AIR STOPPING
摘要
申请公布号
PL302252(A1)
申请公布日期
1995.08.21
申请号
PL19940302252
申请日期
1994.02.15
申请人
KOSTORZ NORBERT;SKOWRON HENRYK
发明人
KOSTORZ NORBERT;SKOWRON HENRYK
分类号
E21F1/14;(IPC1-7):E21F1/14
主分类号
E21F1/14
代理机构
代理人
主权项
地址
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