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经营范围
发明名称
Dispositif de protection contre les gaz toxiques
摘要
申请公布号
FR48782(E)
申请公布日期
1938.06.23
申请号
FRD48782
申请日期
1937.02.12
申请人
发明人
FILS LOUIS GRANGER
分类号
A62B19/00
主分类号
A62B19/00
代理机构
代理人
主权项
地址
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