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发明名称
ELEKTRISCHE LAMPE MIT EINEM DIE LICHTAUSSTRAHLUNG BEEINFLUSSENDEN INNENUEBERZUG AM GLASGEFAESS.
摘要
申请公布号
DE1669437(U)
申请公布日期
1953.12.31
申请号
DE1951P002732U
申请日期
1951.12.07
申请人
PATENT-TREUHAND-GESELLSCHAFT FUER ELEKTRISCHE GLUEHLAMPEN M.B.H.
发明人
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主分类号
代理机构
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