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发明名称
(B1) ;ROOF SUPPORT PROP
摘要
申请公布号
PL211158(A1)
申请公布日期
1980.08.11
申请号
PL19780211158
申请日期
1978.11.23
申请人
ZMECHANIZOWANYCH OBUDOW SCIANO
发明人
KOSTRZEWA KAZIMIERZ;DERDA HENRYK;CIESIELSKI TADEUSZ;ZYCH HENRYK;DREWNIAK ADOLF
分类号
E21D;E21D15/44;(IPC1-7):E21D/
主分类号
E21D
代理机构
代理人
主权项
地址
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