| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 428/53 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 1,002,231 | Sep. 05, 1911 | C.J. Dalley | Lifting Board for Drop Hammers | drop hammers | |
| 1,091,523 | Mar. 31, 1914 | G.H. Merrill | Lifting Board for Drop Hammers | drop hammers | |