| Patents Granted on 1957-08-?? |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| 2,801,475 | Aug. 06, 1957 | F. Meyer, Jr. | Gage for Measuring Circumambient Surfaces | special measuring tools |
| 2,801,504 | Aug. 06, 1957 | S.A. Mercurio, J.R. MacIntosh | Abrasive wheel structure | grinding wheels |
| 2,801,621 | Aug. 06, 1957 | R. Anderson, P.R. Hunt | Fuel-pump carburetor | |
| 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-Purpose 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 |
| D180,815 | Aug. 20, 1957 | J.G. Bentley | Portable power operated saw | handheld circular saws |
| 2,803,448 | Aug. 20, 1957 | L.B. Biebel | Computing scale | |
| 2,803,980 | Aug. 27, 1957 | I.R. Vogel | Reversible Ratchet Wrench | ratchet wrenches |
| 2,804,064 | Aug. 27, 1957 | S.G. Brady | Triming Mechanism | grinder dressers |
