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发明名称
Perfectionnements apportés aux installations de remblayage pneumatique commandées par de l'air comprimé, plus spécialement pour des exploitations minières
摘要
申请公布号
FR1264398(A)
申请公布日期
1961.06.19
申请号
FR19600835029
申请日期
1960.08.04
申请人
发明人
DUESTERLOH ALWIN
分类号
E21F15/10
主分类号
E21F15/10
代理机构
代理人
主权项
地址
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