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发明名称
Dispositif de sécurité pour lampes électriques pour mines et usages analogues
摘要
申请公布号
FR37765(E)
申请公布日期
1931.01.17
申请号
FRD37765
申请日期
1929.12.10
申请人
SOCIETE BELGE D'APPLICATIONS ELECTRIQUES
发明人
分类号
F21L4/00;F21V25/02
主分类号
F21L4/00
代理机构
代理人
主权项
地址
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