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发明名称
Perfectionnements aux détecteurs de gaz nocifs
摘要
申请公布号
FR843945(A)
申请公布日期
1939.07.12
申请号
FRD843945
申请日期
1938.03.21
申请人
发明人
LOUIS MANESCAU
分类号
A62B29/00
主分类号
A62B29/00
代理机构
代理人
主权项
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