`Bag in box' portable apparatus for measurement of the transfer factor of the lung, developed by ML Thomson, Department of Applied Physiology, London School of Hygiene and Tropical Medicine for work on lung diseases, particularly asbestosis, 1957-58 `Bag in box' portable apparatus for measurement of the transfer factor of the lung
120 litre spirometer by Siebe Gorman, for lung function testing, comprising spirometer, recording cylinder and spirometer bell support, made in England for Department of Medicine, Edinburgh University, 1960-1990 120 litre spirometer by Siebe Gorman 1960
Gaensler spirometer by Poulton, Glamorgan, 1950-1960 with a timing unit, by Venner Electronics Ltd., 1960-1969 Gaensler spirometer by Poulton 1950-1960
Double Benedict recording spirometer (on trolley) which, in conjunction with a Carlens double lumen catheter, allows separate recordings to be made from each lung, by C.F. Palmer (London) Ltd, 1950-1965 Double Benedict recording spirometer (on trolley) which 1950-1960