Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 148,151 pages of information and 233,681 images on early companies, their products and the people who designed and built them.
of Welwyn Garden City
1935 Company founded.
1935 Private company.
1940 Advert for arc welding equipment and electrodes. 
1945 'The world's largest manufacturers of arc welding equipment and electrodes'. 
1961 Manufacturers of arc welding equipment, supplies and accessories. 365 employees.