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经营范围
发明名称
Improvements in or relating to means for protecting respiration in a vitiated or rarified atmosphere
摘要
申请公布号
GB526386(A)
申请公布日期
1940.09.17
申请号
GB19390008229
申请日期
1939.03.14
申请人
BRONZAVIA, S.A.
发明人
分类号
A62B7/14
主分类号
A62B7/14
代理机构
代理人
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