DescriptionDavy lamp.png English: en:Davy lamp, a safety lamp for use in coal mines Source Bibliothek allgemeinen und praktischen Wissens für Militäranwärter...
DescriptionBernhard Boecker Davy lamp.png Deutsch: Sicherheitsgrubenlampe System Davy, ca. 1820. Messing & Draht. H 25,8 cm, ∅ max. 5 cm. Hersteller vermutlich...
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Argand lamp. - 33-34. (Antoine Quinquet's improved) Argand lamp. - 35. Stephenson (Geordie) lamp (mines). - 36. Street light. - 37. Davy lamp. - 38. Air-fed...
