| Patents for none listed |
Patents 2431 -
2445
of 3291
      |
| Number | Date | Patentee | Title | Type |
| 2,769,349 | Nov. 06, 1956 | O.A. Costello | Disconnectable Worm Gearing | industrial machine gearing |
| 2,769,359 | Nov. 06, 1956 | J.W. Healy | Toggle Wrench | quick adjust wrenches |
| 2,771,169 | Nov. 20, 1956 | M. Wahlstrom | Rotary Work Table | rotary tables |
| D179,307 | Nov. 27, 1956 | F.M. Gustafson, J. McLeod | Metal Shaper | metal shapers |
| 2,772,763 | Dec. 04, 1956 | W.J. Johnson | Ratchet Wrench | ratchet wrenches |
| 2,776,470 | Jan. 08, 1957 | R.G. Knudsen | Cylinder Sleeve Pulling Device and the Like | |
| D179,555 | Jan. 22, 1957 | W.K. Bergman | Hand Wheel Wrench | wrenches |
| 2,778,401 | Jan. 22, 1957 | E.D. Wilkerson | Camber Correcting Method and Means | |
| DE-1,739,223 | Feb. 07, 1957 | n. listed | Gauge for Measuring Screw Threads | thread gages |
| 2,782,513 | Feb. 26, 1957 | R.C. Brandt | Geometrical Instruments | |
| 2,787,054 | Apr. 02, 1957 | G.E. Franck | Readily Adjustable Tube Cutting Means | tubing cutters |
| 2,788,519 | Apr. 09, 1957 | W.D. Caldwell | Position Indicating Device | measurement gauges |
| GB-772,118 | Apr. 10, 1957 | n. listed | Improvements in Wire Holder for Three-Wire Method of Measuring Threads | thread gages |
| 2,789,429 | Apr. 23, 1957 | J.B. Bidwell | Surface Gage Extension Probe | measurement gauges |
| 2,792,733 | May 21, 1957 | E.H. Adams, G.M. Walraven | Pre-Set Torque Indicating Wrench | torque wrenches |
