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| Patents Granted on 1920-09-28 | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,353,902 | Sep. 28, 1920 | C.W. Herberger | Driving Mechanism For Grinding Tools | valve grinding tools | |
| 1,354,010 | Sep. 28, 1920 | E.J. Cady, A. Wyzenbeek | Micrometer Caliper | dial indicator gauges | |
| 1,354,065 | Sep. 28, 1920 | C. Pruessing, W. Pruessing | Tool Holder for Blow Torches | soldering iron heaters | |
| 1,354,325 | Sep. 28, 1920 | J.R. Mitchell | Stone-polishing wheel | ||
| 1,354,453 | Sep. 28, 1920 | F. Nueske | Pattern-lathe | pattern lathes | |