| Patents for Pratt & Whitney Co. |
Patents 136 -
150
of 261
      |
| Number | Date | Patentee | Title | Type |
| 847,573 | Mar. 19, 1907 | B.M. Hanson | Chuck | drill chucks |
| 867,198 | Sep. 24, 1907 | A.E. Thayer, B.M. Hanson | Foot Stock | cylindrical grinders |
| 876,543 | Jan. 14, 1908 | B.M. Hanson | Friction Clutch | metalworking machine mechanisms |
| 905,518 | Dec. 01, 1908 | B.W. Hanson | Chuck Actuating Device | metal lathe chucks |
| 912,124 | Feb. 09, 1909 | B.M. Hanson | Fluid Pressure Indexing Mechanism | indexers and dividers |
| 921,977 | May 18, 1909 | C.L. Goodrich | Tool Holder | tap and die holders |
| 921,983 | May 18, 1909 | B.M. Hanson | Indexing Mechanism | turret lathes |
| 921,985 | May 18, 1909 | B.M. Hanson | Mechanism for shifting the cross-slides of lathes | metal lathes |
| 927,525 | Jul. 13, 1909 | C.L. Grohmann | Variable Speed Mechanism | metalworking variable speed mechanisms |
| 945,387 | Jan. 04, 1910 | B.M. Hanson | Metal-working machine | turret lathes |
| 945,453 | Jan. 04, 1910 | B.M. Hanson | Mechanism for actuating cross-slides | metal lathes |
| 945,454 | Jan. 04, 1910 | B.M. Hanson | Feed Arresting Device | metal lathe accessories and attachments |
| 945,455 | Jan. 04, 1910 | B.M. Hanson | Reducing-machine | milling machines |
| 945,456 | Jan. 04, 1910 | B.M. Hanson | Metal-working machine | metal lathes |
| 948,697 | Feb. 08, 1910 | B.M. Hanson | Gearing | industrial machine gearing |
