Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 142,989 pages of information and 229,205 images on early companies, their products and the people who designed and built them.
of 6, Old Queen-street, S.W.1. (1920)
of 8 Princes' Street, Westminster, S.W.l (1921)
of 18 Frankfort Street, Birmingham.
Manufacturers and suppliers in Great Britain.
1921 Offered the Cyc-Arc welding machine invented by Mr. Louis John Steel, electrical engineer at Portsmouth Dockyard, and Messrs. Harold Martin and Edward McCarthy; the machine had been in use for some time in the Admiralty Dockyard
1937 Electric welding plant manufacturers. "Pontelec" Electric Welding Plant.