| Patents Granted on 1890-12-30 |
Patents 1 -
15
of 15
      |
| Number | Date | Patentee | Title | Type |
| 443,500 | Dec. 30, 1890 | L.B. Curtis, R.P. Curtis | Pipe Threading Machine | pipe threading machines |
| 443,501 | Dec. 30, 1890 | R.P. Curtis | Pipe Threading Machine | pipe threading machines |
| 443,502 | Dec. 30, 1890 | R.P. Curtis | Pipe Threading Machine | pipe threading machines |
| 443,553 | Dec. 30, 1890 | S. Taylor | Saw Handle (pivoting with device to hold in place) | saw handles |
| 443,569 | Dec. 30, 1890 | C.H. Cooley | Grain-weigher | |
| 443,572 | Dec. 30, 1890 | E.C. Goeldner | Dental Grindstone Wetter and Wiper | dental apparatus |
| 443,694 | Dec. 30, 1890 | W.J. Woodcock | Friction Clutch | |
| 443,718 | Dec. 30, 1890 | F.H. Richards | Grain-weigher | |
| 443,775 | Dec. 30, 1890 | C.L. Libby | Attachment for Turret Lathes | metal lathe accessories and attachments |
| 443,795 | Dec. 30, 1890 | W.R. Root | Sandpapering-machine | tool making machines |
| 443,862 | Dec. 30, 1890 | J.H. Mitchell | Continuous dough-sheeting machine | baker |
| 443,869 | Dec. 30, 1890 | J.W. Riglander | Micrometer Gage | micrometers |
| 443,874 | Dec. 30, 1890 | E. Snyder | Drawing-Knife | draw knives |
| 443,895 | Dec. 30, 1890 | G.E. Burt | Shaft-coupling | industrial machine shaft couplings |
| 443,933 | Dec. 30, 1890 | F.H. Richards, C.H. Cooley | Grain-weigher | |
