| Patents Granted on 1838-03-?? |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 627 | Mar. 10, 1838 | E. L'Hommedieu | Wood auger | gimlets |
| AI4 | Mar. 15, 1838 | I. Jennings | Vapor Burner | lamps |
| 635 | Mar. 17, 1838 | J. Wing | Machine for sawing eaves-troughs for conducting water from buildings, &c., applicable to other purposes | circular saws |
| 636 | Mar. 17, 1838 | S. Merrick | Punch | leather punches |
| 637 | Mar. 17, 1838 | G.G. Lobdell, C. Bush, J. Bonney | Mode of making cast-iron wheels for cars to be used on railroads and applicable to other purposes | railroad car wheels |
| 645 | Mar. 17, 1838 | L. Wilder | Back for forges and furnaces | forge tuyeres |
| 657 | Mar. 26, 1838 | S.G. Merriman, R. Dickinson | Friction Rollers | bearings and rollers |
| 660 | Mar. 28, 1838 | D. Hutchins, N. Millington, E. Waste | Machine to Set Saw Teeth | saw sets |
