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发明名称
Perfectionnements aux projecteurs
摘要
申请公布号
FR772629(A)
申请公布日期
1934.11.02
申请号
FRD772629
申请日期
1934.05.01
申请人
发明人
WETZEL JOSEPH
分类号
F21V11/00
主分类号
F21V11/00
代理机构
代理人
主权项
地址
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