| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 451/133 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 1,440,386 | Jan. 02, 1923 | C.L. Hawes | Polishing and Grinding Machine | polishing machines | |
| 1,624,211 | Apr. 12, 1927 | W.L. Bryant | Multispindle internal-combustion machine | cylindrical grinders | |