William Jones (Chemical Engineers)
Probably the same as William Jones (of London) and William Jones (of Charlton).
1963 Acquired by A. C. E. Machinery[1]
1964 William Jones won contract for 6 Osprey sludge bed discharges for a sewage works in Tripoli[2]
1978 William Jones (Chemical Engineers) was a subsidiary of ACE Machinery[3]