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Gas and Air Machines

Gas and Air Machines: Development and Trials

Lucy Baldwin Nitrous Oxide and Oxygen Machine

Correspondence about development by Dr JE Elam, preliminary trials and possible names for machine

British Oxygen Gases/Company (BOC): correspondence about production and naming of machine

Medical Research Council (MRC), Central Midwives Board (CMB): correspondence about trials

Reports on trials of prototype

General correspondence

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General correspondence

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