| Patents for Middletown Machine Co. |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 339,336 | Apr. 06, 1886 | C.W. Shartle | Chuck | lathe dogs |
| 394,729 | Dec. 18, 1888 | C.W. Shartle | Slip-collar for pulleys | industrial machine pulleys and belt drive mechanisms |
| 411,620 | Sep. 24, 1889 | C.W. Shartle | Lathe-dog | lathe dogs |
| 521,055 | Jun. 05, 1894 | C.W. Shartle | Slip-collar for pulleys, shafts, &c. | industrial machine pulleys and belt drive mechanisms |
| 558,528 | Apr. 21, 1896 | J.M. Shartle | Lubricator | lubricators |
| 658,594 | Sep. 25, 1900 | C.E. Miller, C.W. Shartle | Gas Engine | gas and gasoline engines |
