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经营范围
发明名称
Elektrische Leuchtröhre.
摘要
申请公布号
CH154947(A)
申请公布日期
1932.05.31
申请号
CHD154947
申请日期
1931.03.27
申请人
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN M. B. H.
发明人
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN M. B. H.
分类号
主分类号
代理机构
代理人
主权项
地址
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