| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| Patents for Andrew Caldwell | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 9,046X | Aug. 20, 1835 | A. Caldwell | Spinning hemp and flax | flax and hemp machines | |
| 5,334 | Oct. 16, 1847 | A. Caldwell | Improvement in cutter-heads for planing-machines | cutters | |