| Patents for Pratt & Whitney Co. |
Patents 211 -
225
of 260
      |
| Number | Date | Patentee | Title | Type |
| 1,501,252 | Jul. 15, 1924 | G.T. Trundle, Jr. | Thread Milling Machine | thread hobbing and thread milling machines |
| 1,507,265 | Sep. 02, 1924 | J.J. Thacher | Automatic lathe | automatic lathes |
| 1,507,272 | Sep. 02, 1924 | E. Buckingham | Internal Expansion Gauge | measurement gauges |
| 1,508,794 | Sep. 16, 1924 | W.E. Ingham | Lathe-tool mechanism | metal lathes |
| 1,512,626 | Oct. 21, 1924 | P.M. Mueller | Bench Type Gear Testing Machine | gear measuring machines |
| 1,513,758 | Nov. 04, 1924 | B.M. Hanson | Shaper for Grinding Wheels | |
| 1,516,162 | Nov. 18, 1924 | J.J. Thacher | Chuck Operating Means | metal lathe chucks |
| 1,516,196 | Nov. 18, 1924 | A.B. Lindstrom | Plain Relieving Attachment for Lathes | metal relieving attachments |
| 1,516,477 | Nov. 18, 1924 | J.K. Schofield | Lost Motion Means for Gear Hobbing Machines | gear hobbing machines |
| 1,521,340 | Dec. 30, 1924 | S.J. Teller | Automatic Lathe | form producing lathes |
| 1,524,892 | Feb. 03, 1925 | H.D. Tanner | Gear Testing Device | gear measuring machines |
| 1,529,296 | Mar. 10, 1925 | B.H. Blood | Gauge | thread gages |
| 1,533,369 | Apr. 14, 1925 | B.H. Blood | Thread Gauge Construction | thread gages |
| 1,536,734 | May 05, 1925 | H.D. Tanner | Bevel Gear Testing Device | gear measuring machines |
| 1,536,736 | May 05, 1925 | A.W. Erdman, P.F. Vokal | Process of Making Milling Cutters | milling machine cutters |
