发明名称 Lamp bulb holder for miners' electric lamps
摘要 329,586. Concordia Elektrizitõts Akt.-Ges. July 19, 1929, [Convention date]. Battery lamps.-In addition to a spring c inserted between the bulb e and the outer glass d, scattering springs b are provided pressing outwardly on the glass, so as to ensure the parts being dispersed on breakage and the bulb released. The springs b may be soldered to the same cap a as the spring c.
申请公布号 GB329586(A) 申请公布日期 1930.05.22
申请号 GB19290026103 申请日期 1929.08.27
申请人 CONCORDIA, ELEKTRIZITATS-AKTIEN-GESELLSCHAFT 发明人
分类号 F21L4/00;F21V25/02 主分类号 F21L4/00
代理机构 代理人
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