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经营范围
发明名称
Procédé et dispositif pour signaler l'épuisement des filtres et des épurateurs anti-gaz
摘要
申请公布号
FR47509(E)
申请公布日期
1937.05.24
申请号
FRD47509
申请日期
1936.07.08
申请人
SOCIETA ITALIANA PIRELLI
发明人
分类号
A62B23/00
主分类号
A62B23/00
代理机构
代理人
主权项
地址
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