| Patents for John Black |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 140,561 | Jul. 01, 1873 | G. Warsop | Pipe Wrenches | pipe wrenches |
| 222,972 | Dec. 23, 1879 | J.B. White | Feed Screw for Drills | drill feed screws |
| 565,875 | Aug. 18, 1896 | W. Black | Machine for cutting pulley-stile pockets | mortising machines |
| 605,774 | Jun. 14, 1898 | W. Black | Mortising-machine | mortising machines |
| 732,160 | Jun. 30, 1903 | J. Black | Clamp | bar and pipe clamps |
| 783,502 | Feb. 28, 1905 | J. Black, W. Black | Clamp or vise | hand screws |
| 869,688 | Oct. 29, 1907 | J. Black | Sandpapering-machine | belt sanders |
