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发明名称
ROOF SUPPORTS STIRRUP
摘要
申请公布号
PL108424(U1)
申请公布日期
2000.01.31
申请号
PL19980108424U
申请日期
1998.07.22
申请人
GLOWNY INSTYTUT GORNICTWA
发明人
CIALKOWSKI BOGUSLAW;RULKA KAZIMIERZ
分类号
E21D11/22;(IPC1-7):E21D11/22
主分类号
E21D11/22
代理机构
代理人
主权项
地址
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