| All Patents in class 144/28.1 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 17,992 | Aug. 11, 1857 | B.D. Whitney | Machine for smoothing planed wooden surfaces | wood planers |
| 310,041 | Dec. 30, 1884 | S. Forrester | Pencil-sharpener | pencil sharpeners |
| 332,146 | Dec. 08, 1885 | S. Forrester | Pencil-sharpener | pencil sharpeners |
| 372,258 | Oct. 25, 1887 | S. Forrester | Pencil-sharpener | pencil sharpeners |
| 388,533 | Aug. 28, 1888 | G.H. Coursen | Lead-pencil sharpener | pencil sharpeners |
| 426,716 | Apr. 29, 1890 | E.S. Drake | Pencil-sharpener | pencil sharpeners |
| 431,517 | Jul. 01, 1890 | H.K. Harker | Pencil-sharpener | pencil sharpeners |
| 547,151 | Oct. 01, 1895 | J.S. Moseley | Pencil-sharpener | |
| 600,542 | Mar. 15, 1898 | S.D. Lincoln | Pencil-sharpener | pencil sharpeners |
