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发明名称
TUNNEL EXCAVATOR
摘要
申请公布号
JPS5641990(A)
申请公布日期
1981.04.18
申请号
JP19790118553
申请日期
1979.09.13
申请人
OKUMURA CONSTR CO LTD
发明人
MANZAWA TETSUO;ITOU TOSHIHIKO
分类号
E21D9/06;E21D9/04;E21D9/08
主分类号
E21D9/06
代理机构
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