| Patents Granted on 1808-04-?? |
Patents 1 -
15
of 23
      |
| Number | Date | Patentee | Title | Type |
| 844X | Apr. 06, 1808 | J. Pondrell | Economical furnace or stove | stoves |
| 845X | Apr. 11, 1808 | T. Cohoon | Cross cut saw | crosscut saws |
| 846X | Apr. 12, 1808 | R. Kilborn | Mode of lessening friction in carriages | carriage maker |
| 847X | Apr. 12, 1808 | E. Warner | Cheese press | cheese press |
| 848X | Apr. 13, 1808 | T. Cohoon | Machine for breaking and swingling hemp | flax and hemp machines |
| 849X | Apr. 14, 1808 | T. Cohoon | Screw press | |
| 850X | Apr. 14, 1808 | I. Ives | Faucets for Drawing Liquors From Casks | faucets |
| 851X | Apr. 18, 1808 | W. Coolidge | Machine for smoothing and polishing paper | polishing and buffing machinery |
| 852X | Apr. 20, 1808 | G. Harris, S. Frothingham | Stripping alum dressed leather for shoe binding | leatherworker |
| 853X | Apr. 21, 1808 | J. Fairbanks | Cylindric rolling mills | rolling mills |
| 854X | Apr. 22, 1808 | D. Pierpont | Churn | churns |
| 855X | Apr. 23, 1808 | T. Cruttenden | Spinning wheel | spinner |
| 856X | Apr. 23, 1808 | R. Pitkin | Manufacturing hats, cloths, etc. without bowing from a fleece or sheet taken from a carding engine | cloth carding machines |
| 857X | Apr. 25, 1808 | A. Reed | Churn | churns |
| 858X | Apr. 25, 1808 | D. Cobb | Carriages for field artillery | |
