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发明名称
PNEUMATIC INSTALLATION FOR INJECTING CEMENT MORTAR FOR ROCK BOLTS
摘要
申请公布号
RO91533(B1)
申请公布日期
1987.05.01
申请号
RO19850117433
申请日期
1985.01.25
申请人
CENTRALA MINEREURILOR
发明人
MANASTIREANU MIHAI;RUS VASILE
分类号
E21D20/00
主分类号
E21D20/00
代理机构
代理人
主权项
地址
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