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经营范围
发明名称
TUNNEL DRILLING MACHINE
摘要
申请公布号
JPS5870000(A)
申请公布日期
1983.04.26
申请号
JP19810168101
申请日期
1981.10.20
申请人
HITACHI KENKI KK
发明人
YAMAZAKI HIDETSUGU
分类号
E21D9/12
主分类号
E21D9/12
代理机构
代理人
主权项
地址
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