| Patents Granted on 1825-04-?? |
Patents 1 -
15
of 28
      |
| Number | Date | Patentee | Title | Type |
| 4,074X | Apr. 02, 1825 | J. Thomas | Dowelling bit, used in ship building | shipwright |
| NX-182,504,021 | Apr. 02, 1825 | N.A. Stoddard | Traverse Springs | wagon maker |
| 4,075X | Apr. 04, 1825 | S. Slater | Machine for spinning wool | spinner |
| 4,076X | Apr. 04, 1825 | I. Macauley | Making furniture oil cloth | furniture |
| 4,077X | Apr. 07, 1825 | F.H. Smith | Musical glasses, called grand harmonicon | musical instruments |
| 4,078X | Apr. 07, 1825 | C. Blood | Fire places and chimneys | |
| 4,079X | Apr. 11, 1825 | J. Giles | Desmond's mode of obtaining the tanning principle from bark | bark processing machines |
| 4,080X | Apr. 11, 1825 | B. Mattby | Horse Power to All Kinds of Machinery | animal powered apparatus |
| 4,081X | Apr. 11, 1825 | W. Whitehead | Rolling or twisting cotton, flax and wool | flax and hemp machines |
| 4,082X | Apr. 11, 1825 | H. Haight, Jr., H. White | Machine for cutting bark and dye woods | bark processing machines |
| 4,083X | Apr. 11, 1825 | O. Batchelder, J.P. Houston | Machine for shaving leather | leatherworker |
| NX-182,707,131 | Apr. 11, 1825 | G. Bird | Paper Polishing | paper making machines |
| 4,084X | Apr. 13, 1825 | W.W. McIntosh, W. Barnheart | Pendulum power regulated by flywheel | |
| 4,085X | Apr. 14, 1825 | J. Thomas | Naval architecture | |
| 4,086X | Apr. 14, 1825 | H. Dotterer | Bellows for furnaces, etc. | blacksmith |
