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发明名称
Elektrische Natriumdampfbogenlampe mit Gluehkathode
摘要
申请公布号
DE604600(C)
申请公布日期
1934.10.24
申请号
DE1932N034040D
申请日期
1932.08.03
申请人
N. V. PHILIPS' GLOEILAMPENFABRIEKEN
发明人
GROOT WILLEM DE
分类号
H01J61/74
主分类号
H01J61/74
代理机构
代理人
主权项
地址
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