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发明名称
EXCAVATOR AND EXCAVATION METHOD
摘要
申请公布号
JPH08291681(A)
申请公布日期
1996.11.05
申请号
JP19950119290
申请日期
1995.04.20
申请人
TOKYU CONSTR CO LTD;TOTO DENKI KOGYO KK;YOSHIDA TEKKOSHO:KK
发明人
TAKASU MOTOYUKI;FUKUDA SUMIO;YANAGIHARA YOSHITAKA;KATOU KAZUO;IWASAKI KEIJI;OTSUKA KOICHI
分类号
E21B6/00;E21B6/02;E21B7/20;(IPC1-7):E21B7/20
主分类号
E21B6/00
代理机构
代理人
主权项
地址
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