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发明名称
Einrichtung zur Anzeige von Veränderungen eines Gases oder Gasgemisches.
摘要
申请公布号
CH227471(A)
申请公布日期
1943.06.15
申请号
CHD227471
申请日期
1940.01.31
申请人
JAEGER,WALTER C.
发明人
C. JAEGER,WALTER
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主分类号
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