| All Patents of Type: welding apparatus |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 331,527 | Dec. 01, 1885 | C.W. Nason | Machine for Welding Plugs in the Ends of Tubes | welding apparatus |
| 403,520 | May 21, 1889 | J. Cumming | Device for Welding the Ends of Boiler Flues | welding apparatus |
| 432,652 | Jul. 22, 1890 | E. Thomson | Welding or other dynamo | welding |
| 433,423 | Jul. 29, 1890 | C.E. Schroeder | Machine for Welding Calks to Horseshoes | welding apparatus |
| 434,530 | Aug. 19, 1890 | E. Thomson | Process of and Apparatus for Forming and Welding Metals by Electricity | welding apparatus |
| 434,531 | Aug. 19, 1890 | E. Thomson | Induction Discharge Protector for Welding Appatatus | welding apparatus |
| 526,688 | Oct. 02, 1894 | J. Cumming | Machine for Lengthening Boiler Flues | welding apparatus |
| 626,352 | Jun. 06, 1899 | G.W. De Tunzelmann | Apparatus for Holding Carbons for Electric Welding | welding apparatus |
