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发明名称
Gasschutzmaskenfenster.
摘要
申请公布号
AT155999(B)
申请公布日期
1939.04.25
申请号
ATD155999
申请日期
1935.11.18
申请人
JOHANN LIEBIG & COMP.;DR. ING. HEINZ HAMPE
发明人
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主分类号
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