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发明名称
HIGH PRESSURE WATER VALVE FOR ROCK CUTTER
摘要
申请公布号
AU580489(B2)
申请公布日期
1989.01.12
申请号
AU19850044676
申请日期
1985.07.08
申请人
INSTITUT CERAC S.A.
发明人
THOMAS KRAMER-WASSERKA
分类号
E21C25/60;E21C35/23;(IPC1-7):F16K11/085;E21B10/60;E21B27/00
主分类号
E21C25/60
代理机构
代理人
主权项
地址
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