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发明名称
EXCAVATOR
摘要
申请公布号
JPH0882181(A)
申请公布日期
1996.03.26
申请号
JP19940215733
申请日期
1994.09.09
申请人
YAMAZAKI HIROBUMI
发明人
YAMAZAKI HIROBUMI
分类号
E21B4/10;E21B10/32;(IPC1-7):E21B4/10
主分类号
E21B4/10
代理机构
代理人
主权项
地址
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