Odourless Lawson Room Heater, a portable flueless double-sided gas fire which can double as a simple cooker, with central row of burners, perforated iron radiant above surrounded by dress guard, all in sheet steel casing enamelled Lincoln green, patent no 10041-1000 in 1910, English, 1913-1925 Odourless Lawson Room Heater 1913-1925
Reaction time unit as used in the Biosignal Laboratory at the Institute of Psychiatry, London, England, established by Professor Hans Eysenck and Dr Paul Barrett to conduct invesigations into the relationship between psychophysiological and psychometric measures, 1988-1994. Reaction time unit as used in the Biosignal Laboratory at the Institute of Psychiatry 1989