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发明名称
METHOD OF EXCAVATING TUNNEL
摘要
申请公布号
JPS541931(A)
申请公布日期
1979.01.09
申请号
JP19770065839
申请日期
1977.06.06
申请人
TAISEI CORP
发明人
OKAZAKI MASAO;EZAKI KAZUHIKO;NISHIWAKI SEIICHI
分类号
E21D9/00
主分类号
E21D9/00
代理机构
代理人
主权项
地址
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