


'Walton Minnit' gas and air apparatus
1936-1950

Pneumothorax apparatus for injecting gas into the thoracic cavity in order to collapse the lung
1901-1930

"PORT-O-JET" Multidose Jet Injection Apparatus
1970-1975

Carbon Dioxide absorption apparatus
"Autogesia" self-administered anaesthetic apparatus for nitrous oxide and air analgesia
1935-1937
Portable 'Walton Minnit' apparatus for nitrous oxide and air analgesia
1936-1945
Robert's inflating apparatus
1801-1900
"PORT-O-JET" Multidose Jet Injection Apparatus
1970-1975
Part of U boat ventilation system
1910-1918