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发明名称
Improvements in or relating to gas filled electric incandescent lamps having spirally shaped incandescent elements
摘要
申请公布号
GB399715(A)
申请公布日期
1933.10.12
申请号
GB19330006908
申请日期
1933.03.07
申请人
VEREINIGTE GLUEHLAMPEN UND ELECTRICITAETS ACTIENGESELLSCHAFT
发明人
分类号
H01K1/50
主分类号
H01K1/50
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代理人
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