| Patents for Pratt & Whitney Co. |
Patents 166 -
180
of 264
      |
| Number | Date | Patentee | Title | Type |
| 1,098,981 | Jun. 02, 1914 | W.T. Sears | Supporting-arm for radial drills | radial drill presses |
| 1,104,988 | Jul. 28, 1914 | B.M. Hanson | Metal Reducing Machine | surface grinders |
| 1,118,342 | Nov. 24, 1914 | B.M. Hanson | Metal-working machine | metal shapers |
| 1,122,649 | Dec. 29, 1914 | W.T. Sears | Adjusting mechanism | radial drill presses |
| 1,140,326 | May 18, 1915 | B.M. Hanson | Clutch Mechanism | industrial machine clutches |
| 1,182,170 | May 09, 1916 | B.M. Hanson | Head-stock | metal lathes |
| 1,182,477 | May 09, 1916 | C.L. Grohmann, B.M. Hanson | Boring-machine | drilling and boring |
| 1,182,478 | May 09, 1916 | B.M. Hanson | Steady Rest | grinding attachments |
| 1,187,730 | Jun. 20, 1916 | B.M. Hanson | Milling-machine | milling machines |
| 1,187,920 | Jun. 20, 1916 | F. Müller | Chuck | metal lathe chucks |
| 1,191,220 | Jul. 18, 1916 | G.E. Peterson | Automatic back-rest | metal lathe accessories and attachments |
| 1,194,864 | Aug. 15, 1916 | F. Müller | Machine for making twist drills | metal lathes |
| 1,199,408 | Sep. 26, 1916 | F. Müller | Chucking device | metal lathe chucks |
| 1,200,610 | Oct. 10, 1916 | B.M. Hanson | Metal-working machine | milling machines |
| 1,202,997 | Oct. 31, 1916 | B.M. Hanson | Tail-stock | metal lathes |
