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发明名称
DETERMINING METHOD OF AMOUNT OF SAFETY CHARGE IN DRILLHOLE BLASTING
摘要
申请公布号
JPH04106400(A)
申请公布日期
1992.04.08
申请号
JP19900221129
申请日期
1990.08.24
申请人
NAKAJIMA YASUJI
发明人
NAKAJIMA YASUJI
分类号
F42D1/00
主分类号
F42D1/00
代理机构
代理人
主权项
地址
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