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发明名称
Dispositif pour la protection des lanternes électriques de mines
摘要
申请公布号
FR680436(A)
申请公布日期
1930.04.29
申请号
FRD680436
申请日期
1929.06.08
申请人
LIGNOZA SPOLKA AKCYJNA
发明人
分类号
F21V23/00;F21V25/12;F21Y101/00
主分类号
F21V23/00
代理机构
代理人
主权项
地址
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