| Patents for Harlan A. Hadley |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 2,167,204 | Jul. 25, 1939 | H.A. Hadley | Automatic Beam Stop | scales and balances |
| 2,238,363 | Apr. 15, 1941 | H.A. Hadley | Electrical Impulse Weight Recorder | scales and balances |
| 2,256,318 | Sep. 16, 1941 | H.A. Hadley | Bearing Structure | industrial machine bearings |
| 2,258,648 | Oct. 14, 1941 | H.A. Hadley | Understructure for Weighing Scales | scales and balances |
| 2,279,041 | Apr. 07, 1942 | H.A. Hadley | Conveyor Weighing Scale | scales and balances |
| 2,281,838 | May 05, 1942 | H.A. Hadley | Beam Locking Device | scales and balances |
| 2,301,177 | Nov. 10, 1942 | H.A. Hadley | Weight-Registering Apparatus | scales and balances |
| 2,315,789 | Apr. 06, 1943 | H.A. Hadley | Automatic Dial Scale | scales and balances |
