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发明名称
Perfectionnement aux appareils respiratoires portatifs isolants à régénération d'air en circuit fermé
摘要
申请公布号
FR977172(A)
申请公布日期
1951.03.28
申请号
FRD977172
申请日期
1948.10.28
申请人
发明人
LECONTE ROGER-ALPHONSE
分类号
A62B7/08
主分类号
A62B7/08
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代理人
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