| Patents for Pratt & Whitney Co. |
Patents 1 -
15
of 260
      |
| Number | Date | Patentee | Title | Type |
| 29,939 | Sep. 04, 1860 | F.A. Pratt | Improvement in devices for stopping and changing motion | |
| 33,816 | Nov. 26, 1861 | F.A. Pratt | Improvement in stopping and changing motion | |
| 93,903 | Aug. 17, 1869 | F.A. Pratt | Metal Planing | metal planers |
| 102,577 | May 03, 1870 | W. Pim, A. Newell | Metal Chuck | metal planers |
| D4,439 | Oct. 25, 1870 | F.A. Pratt | Design for a drilling-machine | drill presses |
| 112,379 | Mar. 07, 1871 | F.A. Pratt | Improvement in machines for shaping and cutting gear-cutters | |
| 118,481 | Aug. 29, 1871 | E.G. Parkhurst | Improvements in Machinery for Feeding Wire to Machines | metalworking machine mechanisms |
| 148,566 | Mar. 17, 1874 | D. Kennedy | Griping and Cutting Tools | metal shearing machines |
| 161,968 | Apr. 13, 1875 | D. Kennedy | Metal Punch | metal punches |
| 164,391 | Jun. 15, 1875 | F.A. Pratt | Improvement in metal-shearing machines | |
| 164,392 | Jun. 15, 1875 | F.A. Pratt | Improvement in drop-hammers | |
| 165,519 | Jul. 13, 1875 | A. Swasey | Protractor | protractors |
| 167,165 | Aug. 31, 1875 | J.J. Grant | Improvement in die-stocks | tap wrenches and die stocks |
| 168,412 | Oct. 05, 1875 | F.A. Pratt | Improvement in cranes | cranes |
| 170,949 | Dec. 14, 1875 | J.J. Grant | Improvement in screw-cutting die holders | tap wrenches and die stocks |
