| Patents for Pratt, Whitney & Co. |
Patents 1 -
10
of 17
      |
| Picture | Number | Date | Patentee | Title |
 | 33,126 | Aug. 20, 1861 | M. Stannard | Improvement in rotary pumps |
 | 40,082 | Sep. 22, 1863 | F.A. Pratt | Improvement in attaching pumps to bungs of barrels |
 | 40,276 | Oct. 13, 1863 | F.A. Pratt | Improvement in apparatus for attaching pumps to bungs of barrels |
 | 46,152 | Jan. 31, 1865 | D. Slate | Improvement in turning-lathes |
 | 89,177 | Apr. 20, 1869 | D. Slate | Improved Shipping Apparatus for Metal Planers |
 | D3,611 | Aug. 10, 1869 | F.A. Pratt | Design for an upright drill |
 | 100,064 | Feb. 22, 1870 | F.A. Pratt | Improvement in friction-clutches |
 | 155,051 | Sep. 15, 1874 | R.H. Thurston | Torsion measuring apparatus |
 | 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 |
