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 | C. Bulkley, deceased (Estate of), E.H. Bulkley, widow of C. Bulkley | 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 |