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发明名称
RISER CONNECTING APPARATUS
摘要
申请公布号
JPS57178084(A)
申请公布日期
1982.11.02
申请号
JP19810063298
申请日期
1981.04.28
申请人
KOGYO GIJUTSUIN (JAPAN)
发明人
IDENO EIICHIROU;TAMIYA MASARU;OGAWA KATSUMI;KUMAKIRI TADASHI;ANDOU YASUO
分类号
E21B17/18;E21B17/01
主分类号
E21B17/18
代理机构
代理人
主权项
地址
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