| Patents Granted on 1939-11-21 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 2,180,550 | Nov. 21, 1939 | J.M. Redinger | Mounting for a Grinding Wheel | grinder wheels |
| 2,180,795 | Nov. 21, 1939 | N.A. Christensen | Packing | shaft seals |
| 2,180,802 | Nov. 21, 1939 | E.J. Dillman | Control Device | thermostats |
| 2,180,899 | Nov. 21, 1939 | J.W. Gaede | Saw set | saw sets |
| 2,180,911 | Nov. 21, 1939 | B.S. Rogers | Universal lawn mower grinder | sharpening machines |
| 2,180,983 | Nov. 21, 1939 | R.W. Hall | Dynamo-electric machine | electric motors |
| 2,181,023 | Nov. 21, 1939 | J.B. Moore | Cutting Tool | insert tool holders |
