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发明名称
Vorrichtung zur selbsttätigen Bestimmung der Lichtausbeute elektrischer Lampen.
摘要
申请公布号
AT124450(B)
申请公布日期
1931.09.10
申请号
ATD124450
申请日期
1930.10.16
申请人
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN M. B. H.
发明人
分类号
主分类号
代理机构
代理人
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