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发明名称
GENERAL-PURPOSE EXHAUSTING ADAPTER FOR DRILLING RIGS
摘要
申请公布号
CS205484(B1)
申请公布日期
1981.05.29
申请号
CS19790004646
申请日期
1979.07.03
申请人
SISKA,JULIUS,CS;PROSNANSKY,MIROSLAV,CS
发明人
SISKA,JULIUS,CS;PROSNANSKY,MIROSLAV,CS
分类号
(IPC1-7):E21C7/02
主分类号
(IPC1-7):E21C7/02
代理机构
代理人
主权项
地址
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