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发明名称
EXCAVATING HEAD FOR SMALL-BORE PIPE UNDERGROUND BURYING MACHINE
摘要
申请公布号
JPS6436895(A)
申请公布日期
1989.02.07
申请号
JP19870190322
申请日期
1987.07.31
申请人
KOMATSU LTD;KOMATSU ZENOA KK;KOMATSU KENSETSU KOGYO KK
发明人
OTSUKA KINICHI;TAKAGI KOJI;BABA HIROSHI
分类号
E21D9/06;E21D9/08
主分类号
E21D9/06
代理机构
代理人
主权项
地址
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