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经营范围
发明名称
ANNULAR DRILLING MACHINE
摘要
申请公布号
JPH02236393(A)
申请公布日期
1990.09.19
申请号
JP19890055187
申请日期
1989.03.09
申请人
MITSUBISHI HEAVY IND LTD;HAZAMA GUMI LTD
发明人
OKAMOTO KAZUYUKI;TAKENOUCHI YASUAKI
分类号
E21D9/06;E21D9/08
主分类号
E21D9/06
代理机构
代理人
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地址
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