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经营范围
发明名称
WATER PRESSURE ROCK DRILLING DEVICE
摘要
申请公布号
JPS5249903(A)
申请公布日期
1977.04.21
申请号
JP19760057176
申请日期
1976.05.18
申请人
GARDNER DENVER CO
发明人
JIEEMUSU AARU MEIYAA;DEIITAA KEI PARAURO
分类号
B25D9/12;E21B1/00;E21B1/26
主分类号
B25D9/12
代理机构
代理人
主权项
地址
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