| Patents Granted on 1931-06-16 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,809,949 | Jun. 16, 1931 | G.D. Sundstrand | Machine tool | |
| 1,810,029 | Jun. 16, 1931 | G.M. Pelton | Setworks | sawmill set works |
| 1,810,108 | Jun. 16, 1931 | W.C. Kress | Tools in Sets and Holders Therefor | wrench set holders |
| 1,810,186 | Jun. 16, 1931 | F.T. Richards | Doorstop | |
| 1,810,503 | Jun. 16, 1931 | G.H. Thomas | Floating Reamer Holder | drilling and boring tool holders |
| 1,810,646 | Jun. 16, 1931 | W. Dieter | Gyroscopic steering mechanism | torpedoes |
| 1,810,710 | Jun. 16, 1931 | C.E. Johansson | Gauge | inside micrometers |
| 1,810,747 | Jun. 16, 1931 | G.H. Benzon, Jr. | Differential Gear | metalworking power transmission |
| 1,810,884 | Jun. 16, 1931 | E.O. Minor | Machine for Removing and Replacing Wrist Pins | jack screws |
