Anaesthetic gas flow meters, 20th century. These glass and metal flow meters were used to monitor and control the flow of anaesthetic gases such as ox
Anaesthetic gas flow meters, 20th century. These glass and metal flow meters were used to monitor and control the flow of anaesthetic gases such as oxygen and nitrous oxide to a patient during general anaesthesia. They were components of continuous flow anaesthetic machines which were in use from the early 20th century.
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