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发明名称
Uberdruckventil, insbesondere zum Regeln des Raumüberdruckes in Luftschutzräumen.
摘要
申请公布号
CH197899(A)
申请公布日期
1938.05.31
申请号
CHD197899
申请日期
1937.07.26
申请人
DRAEGER OTTO HEINRICH DR.
发明人
DR. DRAEGER OTTO HEINRICH
分类号
主分类号
代理机构
代理人
主权项
地址
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