1934:
Low Temperature Carbonisation Ltd
Coaline - Coalite Process Of Low Temperature Carbonisation
Rec. Num. 1 of 2
Source: Hendon June 30th 1934
1937:
Carless Capel & Leonard
Carless Coalene - The British Coal Petrol
Rec. Num. 2 of 2
Source: Hendon 26th June 1937
