| X Patents |
Patents 826 -
840
of 9755
      |
| Number | Date | Patentee | Title | Type |
| 826X | Mar. 05, 1808 | P. Pratt | Machine for making combs | comb making machines |
| 827X | Mar. 08, 1808 | S. Hays | Churn | churns |
| 828X | Mar. 09, 1808 | E. Cady, Jr. | Forcing pump, with double action | plumber |
| 829X | Mar. 10, 1808 | N. King | Revolving churn | churns |
| 830X | Mar. 11, 1808 | S. Stackhouse | Churn | churns |
| 831X | Mar. 13, 1808 | G. Gridley | Chimneys | |
| 832X | Mar. 14, 1808 | G. Gridley | Fire places | |
| 833X | Mar. 15, 1808 | W. Wadsworth | Washing machine | washing machines |
| 834X | Mar. 15, 1808 | W. Wadsworth | Machine for propelling boats | nautical propulsion apparatus |
| 835X | Mar. 18, 1808 | O. Pease, A. Donalds | Machine for grinding bark, etc. | bark processing machines |
| 836X | Mar. 19, 1808 | J. Johnson | Water wheel | water wheels |
| 837X | Mar. 21, 1808 | E. Benedict | Cider and cheese press | cider presses |
| 838X | Mar. 21, 1808 | B. Brooks, E. Barnum | Distilling or boiling water | |
| 839X | Mar. 22, 1808 | W.W. Townsend | Churns | churns |
| 840X | Mar. 23, 1808 | O. Barrett, Jr. | Fanning mill for grain or clover seed, etc. | fanning mills |
