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发明名称
Elektrische Leuchtröhre.
摘要
申请公布号
AT134826(B)
申请公布日期
1933.10.10
申请号
ATD134826
申请日期
1932.12.05
申请人
PATENT-TREUHAND-GESSELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN M. B. H.
发明人
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主分类号
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