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发明名称
DRILL AND FACILITY FOR DEVELOPMENT DRILLING
摘要
申请公布号
JPH01278688(A)
申请公布日期
1989.11.09
申请号
JP19880109861
申请日期
1988.05.02
申请人
FURETSUCHIYAA SATSUTOKURIFU WAIRUDO LTD
发明人
JIERARUDO RICHIYAADO OORUDOHAMU PENTEISU
分类号
E21C25/16
主分类号
E21C25/16
代理机构
代理人
主权项
地址
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