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发明名称
Lanterne hyperextensive à flux dirigé et à deux directions asymétriques pour lampes-tubes à vapeur de sodium
摘要
申请公布号
FR783540(A)
申请公布日期
1935.07.15
申请号
FRD783540
申请日期
1934.03.23
申请人
COMPAGNIE GENERALE D'ENTREPRISES ELECTRIQUES
发明人
分类号
F21V7/04
主分类号
F21V7/04
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