Class B21D : WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING
Subclass 3/06: Straightening or restoring form of metal rods, metal tubes, metal profiles, or specific articles made therefrom, whether or not in combination with sheet metal parts (straightening of well casings in situE21B) by rollers arranged inclined to a revolving flier rolling frame
| Patent # | Title | Filing Date | Issue Date | Patent Owner |
|---|---|---|---|---|
| 12240034 | Wire straightening solution for bulk packaging | Jan 03, 22 | Mar 04, 25 | Lincoln Global Inc. |
| 11731184 | Rolling straightening machine and method of manufacturing a pipe or tube or a bar using same | Mar 04, 20 | Aug 22, 23 | JFE Steel Corporation |
| 9862015 | Pipe straightener | Sep 07, 16 | Jan 09, 18 | Not available |
| 6301944 | Methods of fabricating mechanized welding wire | Sep 22, 99 | Oct 16, 01 | GENERAL ELECTRIC COMPANY |
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