Karl Connell
Major Karl Connell (1878-1941) was an American surgeon, serviceman and inventor. Connell Mask, Connell Model, Connell Flowmeter, Connell Airway
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Major Karl Connell (1878-1941) was an American surgeon, serviceman and inventor. Connell Mask, Connell Model, Connell Flowmeter, Connell Airway