"BYO 800 mark II", peristaltic blood pump for use in renal dialysis, by Norris Industries Rushden Ltd., 1973-1975, Wellingborough Road, Rushden. "BYO 800 mark II" peristaltic blood pump 1973-1985
Peristaltic pump, metal, for experimental use, by Picador, from Middlesex Hospital, English, 1950-1960 Peristaltic pump 1950-1960