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发明名称
Appareil de mesure portatif pour la détermination de la teneur en oxygène d'un gaz, en particulier pour les mines
摘要
申请公布号
FR92267(E)
申请公布日期
1968.10.18
申请号
FR19670098469
申请日期
1967.03.13
申请人
BERGWERKSVERBAND G. M. B. H.
发明人
分类号
G01N27/74
主分类号
G01N27/74
代理机构
代理人
主权项
地址
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