| Patents Granted on 1917-04-17 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 1,222,709 | Apr. 17, 1917 | W.F. Zimmermann | Gear-generating machine | gear making machines |
| 1,222,783 | Apr. 17, 1917 | M.W. Mattison | Cutter-head | cutterheads |
| 1,222,954 | Apr. 17, 1917 | J.F. Judd, J.J. Hogan | Threading mechanism for automatic lathes | metal lathes |
| 1,223,012 | Apr. 17, 1917 | F.A. Bicknell, F.W. Whelpley | Screw Thread Gaging Device | thread gages |
| 1,223,132 | Apr. 17, 1917 | W.P. Holden, C.J. Zigler | Lumber Tester | rule graduations |
| 1,223,155 | Apr. 17, 1917 | A.M. Drake | Table driving and feeding mechanism for grinding machines | grinders |
| 1,223,325 | Apr. 17, 1917 | F.O. Jaques, Sr. | Anvil for Micrometer Gages and Similar Gages | micrometers |
| 1,223,339 | Apr. 17, 1917 | A.E. Robinson, F.W. Herrmann | Operating Mechanism for Shapers | metal shapers |
| 1,223,342 | Apr. 17, 1917 | W.J. London | Elastic Fluid Turbine | steam turbines |
