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发明名称
Perfectionnements aux projecteurs
摘要
申请公布号
FR723256(A)
申请公布日期
1932.04.06
申请号
FRD723256
申请日期
1931.09.23
申请人
ETABLISSEMENTS DUCELLIER
发明人
分类号
F21V14/02;F21V19/00
主分类号
F21V14/02
代理机构
代理人
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