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发明名称
Perfectionnements aux appareils d'éclairage
摘要
申请公布号
FR707254(A)
申请公布日期
1931.07.06
申请号
FRD707254
申请日期
1930.12.08
申请人
发明人
PIEPER ALPHONSE FERDINAND
分类号
F21V21/108;F21V21/26
主分类号
F21V21/108
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