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发明名称
EXCAVATING TOOL
摘要
申请公布号
JPH0518177(A)
申请公布日期
1993.01.26
申请号
JP19910209977
申请日期
1991.07.26
申请人
MITSUBISHI MATERIALS CORP;R M C TOWA:KK
发明人
ISHIMATSU TOSHIKI;HAYASHI TAKESHI;WADA KIMIYO;TSUJIMOTO KATSUAKI;SATO SHIGERU;MIYAZAKI DAISHIROU;HIWASA YONEO
分类号
E21B10/32;E21B10/36;E21B10/40
主分类号
E21B10/32
代理机构
代理人
主权项
地址
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