L. A. Mitchell

Designer, manufacturer of chemical plant, of Manchester
1937 Laboratory Film Dryer [1]
1965 The L A Mitchell group of companies won a contract for design, manufacture and installation of a formaldehyde plant for use in Finland[2]
1969 L. A. Mitchell (Holdings) sold by S. Pearson to APV[3]
1970 The 3 companies were renamed[4]: