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发明名称
Elektrische Grubenlampe mit federnd gelagerter Gluehlampe
摘要
申请公布号
DE700456(C)
申请公布日期
1940.12.20
申请号
DE1938C054115D
申请日期
1938.06.26
申请人
CONCORDIA ELEKTRIZITAETS-AKT.-GES.
发明人
HOFFMANN ALBERT
分类号
F21V25/02;F21V25/04
主分类号
F21V25/02
代理机构
代理人
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地址
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