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| Patents Granted on 1938-05-10 | |||||
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| Number | Date | Patentee | Title | Type | |
| D109,628 | May 10, 1938 | J. Tate | Design for a drill press guard | drilling and boring | |
| 2,116,498 | May 10, 1938 | E.A. Hall | Grinding Machine | valve grinding tools | |
| 2,116,541 | May 10, 1938 | L. Roush, C. Riedel | Method for aerating liquids | ||
| 2,116,708 | May 10, 1938 | R.A. Niekamp | Apparatus for compacting concrete | ||
| 2,116,764 | May 10, 1938 | D.A. Meeker | Food handling apparatus | ||