Bayeux's oxygen injection apparatus for hypodermic oxygenotherapy, by Jules Richard, 25 rue Melingue, Paris, France, 1910-1930. Bayeux's oxygen injection apparatus for hypodermic oxygenotherapy 1910-1930
Lesieur's oxygen apparatus for hypodermic oxygenotherapy, French, 1871-1920 Lesieur's oxygen apparatus for hypodermic oxygenotherapy