Improvements in or relating to flux holders for welding operations
US1704978A
Welding stick
DE419372C
Device for the electrical connection of railroad tracks, in which the shape intended for receiving the ends of the copper rail connector or the hollow piece is provided with recesses
GB147199A
Improvements in the method of and moulds for cast-welding rail bonds
GB158215A
Improvements in and relating to electric arc welding
GB147198A
Improved method of and means for cast-welding electric bonds
US1576230A
Mold for attaching rail bonds
DE436245C
Form for the electrical welding of rail connectors to the rail ends for electrical railways
