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发明名称
Improvements in and relating to respiratory apparatus for protection against poisonous and injurious substances
摘要
申请公布号
GB365762(A)
申请公布日期
1932.01.28
申请号
GB19310000583
申请日期
1931.01.07
申请人
ALFRED MUNTWYLER
发明人
分类号
A62B15/00
主分类号
A62B15/00
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代理人
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