| All Patents of Type: welding |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 4,631X | Jan. 10, 1827 | C. Bulkley | Making hoes by rolling cast steel | making hoes |
| 5,018X | Feb. 28, 1828 | C. Bulkley, deceased (Estate of), E.H. Bulkley, widow of C. Bulkley | Manufacturing of Shovels of Cast Steel and Iron, or of any other Steel and Iron, by Welding and Rolling the Steel and Iron together | making scythes |
| NX-182,802,281 | Feb. 28, 1828 | E.H. Bulkley, widow of C. Bulkley, C. Bulkley, deceased (Estate of) | Manufacturing of Scythes by Welding and Rolling Iron and Steel together | making scythes |
| 432,652 | Jul. 22, 1890 | E. Thomson | Welding or other dynamo | welding |
| 434,532 | Aug. 19, 1890 | E. Thomson | Process of Electric Welding | welding |
| 1,864,497 | Jun. 21, 1932 | O. Severson | Method of Forge-Welding Stellite | welding |
