| Patents Granted on 1798-12-?? |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 218X | Dec. 14, 1798 | R. Peale | Method of preserving vessels from worms | boats and ships |
| 219X | Dec. 14, 1798 | W. Banks | Improvement in making bread | manufacturing processes |
| 220X | Dec. 14, 1798 | D. Wilkinson | Machine for cutting screws | screw machines |
| 221X | Dec. 14, 1798 | C. Austin | Improvement in manufacturing paper | manufacturing processes |
| 222X | Dec. 14, 1798 | M. Reeve | Pipe and pump for conveying water | water pumps |
| 223X | Dec. 14, 1798 | S. Colver | Machine for cleaning docks and harbors | nautical apparatus |
| 224X | Dec. 14, 1798 | S. Colver | Machine for heaving down vessels, raising weights, etc. | |
