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经营范围
发明名称
Elektrisch betriebene Grubenleuchte
摘要
申请公布号
DE702581(C)
申请公布日期
1941.02.11
申请号
DE1938F084590D
申请日期
1938.03.04
申请人
FRIEMANN & WOLF G.M.B.H.
发明人
分类号
F21S9/04
主分类号
F21S9/04
代理机构
代理人
主权项
地址
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