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发明名称
Avertisseur de la présence de gaz toxiques et particulierement de gaz d'éclairage se répandant accidentellement dans les appartements ou autres locaux
摘要
申请公布号
FR974066(A)
申请公布日期
1951.02.19
申请号
FRD974066
申请日期
1941.12.02
申请人
发明人
MEYER JEAN-ALFRED
分类号
G01N7/10
主分类号
G01N7/10
代理机构
代理人
主权项
地址
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