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发明名称
(B1) ;ROOF SUPPORT PROP
摘要
申请公布号
PL212445(A1)
申请公布日期
1980.07.14
申请号
PL19780212445
申请日期
1978.12.30
申请人
ZMECHANIZOWANYCH OBUDOW SCIANO
发明人
GAJDA HENRYK;DZIUK JAN;KROPIWODA WOLFGANG;JAROSZ WLODZIMIERZ
分类号
E21C;E21D15/50;(IPC1-7):E21C/
主分类号
E21C
代理机构
代理人
主权项
地址
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