| Patents for Joseph Leas |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 29,012 | Jul. 03, 1860 | S. Eberly, F. Seidle | Improvement in horse-rakes | hay or straw rakes |
| 29,107 | Jul. 10, 1860 | S. Eberly, F. Seidle | Machine for bending wood | wheelwright |
| 43,980 | Aug. 30, 1864 | S. Eberly | Improvement in horse-rakes | hay or straw rakes |
| 66,314 | Jul. 02, 1867 | S. Eberly, G. Hauck | Improvement in horse-rakes | hay or straw rakes |
| 70,327 | Oct. 29, 1867 | S. Hauck, S. Eberly | Improvement in horse-rakes | hay or straw rakes |
| 88,114 | Mar. 23, 1869 | I.B. Arthur | Improvement in jigsaws | scrollsaws |
| 90,352 | May 25, 1869 | G.L. Du Laney | Single-tree | |
| 91,102 | Jun. 08, 1869 | G.L. Du Laney | Improvement in harvester-cutters | harvesters |
| 102,787 | May 10, 1870 | G.L. Du Laney | Improvement in tension-devices for thread in sewing-machines | sewing machines |
| 103,311 | May 24, 1870 | J.S. Huston, G.L. Du Laney | Improved loop for harness | |
| 106,796 | Aug. 30, 1870 | G.L. Du Laney | Improvement in tension device for sewing-machine | sewing machines |
| 178,002 | May 30, 1876 | G. Hauck | Improvement in wheels for vehicles | wagon and cart wheels, axles and hubs |
