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| Patents Granted on 1923-02-20 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,445,857 | Feb. 20, 1923 | W.N. Stevens | Cylinder Grinding Machine | cylindrical grinders | |
| 1,445,875 | Feb. 20, 1923 | R.W. Ellingham, C.E. Van Norman | Grinding machine | vehicle mechanic | |
| 1,445,972 | Feb. 20, 1923 | R.R. Reed | Detachable Tooth for Handsaws | handsaw teeth | |
| 1,446,062 | Feb. 20, 1923 | C.R. Pratt | Chuck | metal lathe chucks | |
| 1,446,063 | Feb. 20, 1923 | C.R. Pratt | Chuck | metal lathe chucks | |
| 1,446,065 | Feb. 20, 1923 | C.R. Pratt | Chuck | metal lathe chucks | |