| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | Patent number: | Patent Date: |
| Patents for D. H. Mason | |||||
      | |||||
| Picture | Number | Date | Patentee | Title | |
| 4,912X | Oct. 30, 1827 | M. Baldwin, D.H. Mason | Biting the figures on steel cylinders for calico printers | ||