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发明名称
Procédé et dispositif pour maintenir des charges explosives dans les trous de mine
摘要
申请公布号
FR693228(A)
申请公布日期
1930.11.18
申请号
FRD693228
申请日期
1930.04.03
申请人
发明人
KRUSKOPF HERMANN
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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