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发明名称
LONG-HOLE BLASTING METHOD IN TUNNEL EXCAVATION
摘要
申请公布号
JPS63194200(A)
申请公布日期
1988.08.11
申请号
JP19870026039
申请日期
1987.02.05
申请人
SB KOGYO KK
发明人
ATSUTA KAZUHIKO
分类号
F42D1/08
主分类号
F42D1/08
代理机构
代理人
主权项
地址
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