Collection search - Railways, General - Inventions to detect poisonous gas in tunnels
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Record information – Brief 
Railways, General - Inventions to detect poisonous gas in tunnels
Hierarchical level:FileDate:1926Reference:RG43-A-I-2, Volume number: 206, File number: 515, File part: 1File no. (creator):515Type of material:Textual materialFound in:Archives / Collections and FondsItem ID number:1288765Context of this record: -
Record information – Details Date(s):1926Place of creation:No place, unknown, or undeterminedLanguage of material:UndeterminedFinding aid no.:Subject heading:Source:GovernmentFormer archival reference no.: -
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