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经营范围
发明名称
METHOD OF CRUSHING ROCK
摘要
申请公布号
JPS62174496(A)
申请公布日期
1987.07.31
申请号
JP19860013191
申请日期
1986.01.24
申请人
KOMATSU LTD
发明人
IWAMOTO YASUTAKE
分类号
E21C37/14;B02C19/18
主分类号
E21C37/14
代理机构
代理人
主权项
地址
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