| Patents Granted on 1957-08-13 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| D180,806 | Aug. 13, 1957 | H.A. Plassman | Combined housing and handle for a pneumatic motor or the like | handheld power tools |
| 2,802,259 | Aug. 13, 1957 | A.E. Stoner | Multi-Purose Hand Tool | combination tools |
| 2,802,271 | Aug. 13, 1957 | C.I. Welch | Angle Establishing and determining device | rule attachments |
| 2,802,273 | Aug. 13, 1957 | K.H. Mueller | Dial Indicator Hole Gage | measurement gauges |
| 2,802,312 | Aug. 13, 1957 | G.L. Grove, E. Gosney, Jr. | Grinding Machine | cylindrical grinders |
| 2,802,379 | Aug. 13, 1957 | D.J. McConnell, T.H. Zbikowski, D.B. Chenoweth | Retoothing machine | saw sharpening machines |
| 2,802,385 | Aug. 13, 1957 | W.V. Schmidt | Tailstock Clamp Unit | |
| 2,802,393 | Aug. 13, 1957 | A.D. Young | Inspection Method and Apparatus | comparators |
