| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 122/486 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 655,018 | Jul. 31, 1900 | R. Scheidler | Steam Boiler | traction engine boilers | |
| 2,116,498 | May 10, 1938 | E.A. Hall | Grinding Machine | valve grinding tools | |