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经营范围
发明名称
Doppelwandige elektrische Leuchtroehre
摘要
申请公布号
DE613900(C)
申请公布日期
1935.05.28
申请号
DE1933P067757D
申请日期
1933.06.28
申请人
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN M.B.H.;PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN M.B.H.
发明人
分类号
H01J61/34
主分类号
H01J61/34
代理机构
代理人
主权项
地址
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