| Patents for Pratt & Whitney Co. |
Patents 121 -
135
of 261
      |
| Number | Date | Patentee | Title | Type |
| 731,870 | Jun. 23, 1903 | F.G. Echols | Indexing Mechanism | |
| 731,871 | Jun. 23, 1903 | F.G. Echols | Friction Indexing Mechanism | indexers and dividers |
| 731,872 | Jun. 23, 1903 | F.G. Echols | Motor Mechanism | indexers and dividers |
| 732,184 | Jun. 30, 1903 | B.M. Hanson | Dimensioning apparatus | measuring tools |
| 733,391 | Jul. 14, 1903 | B.M. Hanson | Adjustable Tool Post | lathe tool holders and tool posts |
| 750,108 | Jan. 19, 1904 | B.M. Hanson | Tool-holder | lathe tool holders and tool posts |
| 775,109 | Nov. 15, 1904 | B.M. Hanson | Turret-tool | turret lathes |
| 782,240 | Feb. 14, 1905 | B.M. Hanson | Indexing Mechanism | rotary indexers |
| 782,243 | Feb. 14, 1905 | B.M. Hanson | Feed Stop for Metal Working Machines | metalworking machine mechanisms |
| 795,222 | Jul. 18, 1905 | B.M. Hanson | Gearing for lathes | metal lathes |
| 801,787 | Oct. 10, 1905 | B.M. Hanson | Bracing Attachment for Lathe Tool Carriages | metal lathe accessories and attachments |
| 808,981 | Jan. 02, 1906 | C.L. Goodrich | Tool Holder | lathe tool holders and tool posts |
| 809,257 | Jan. 02, 1906 | B.M. Hanson | Tool Holder | lathe tool holders and tool posts |
| 814,648 | Mar. 06, 1906 | B.M. Hanson | Chuck for Metalworking Machines | metal lathe chucks |
| 847,527 | Mar. 19, 1907 | A.E. Thayer | Turning Attachment for Lathes | metal lathe accessories and attachments |
