| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 285/334.4 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 142,528 | Sep. 02, 1873 | M. Stephens | Improvement in cement-lined pipes | pipes | |
| 881,060 | Mar. 03, 1908 | J.J. Cook | Valve | valves | |
| 2,767,564 | Oct. 23, 1956 | F.L. Green | Tool Holder | drilling and boring tool holders | |