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发明名称
STONE MATERIAL MINING APPARATUS
摘要
申请公布号
JPS6383395(A)
申请公布日期
1988.04.14
申请号
JP19860225128
申请日期
1986.09.24
申请人
YAMAMOTO TEKKOSHO:KK
发明人
YAMAZAKI NOBUAKI
分类号
E21C41/26
主分类号
E21C41/26
代理机构
代理人
主权项
地址
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