| Patents for Frank H. Sleeper |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 1,479,877 | Jan. 08, 1924 | F.H. Sleeper | Nail-making machine | nail making machines |
| 1,490,859 | Apr. 15, 1924 | F.H. Sleeper | Friction clutch | friction clutches |
| 1,496,032 | Jun. 03, 1924 | F.H. Sleeper | Pulley | friction clutches |
| 1,496,559 | Jun. 03, 1924 | F.H. Sleeper | Machine for finishing springs | spring making machines |
| 1,507,007 | Sep. 02, 1924 | F.H. Sleeper | Wire-forming machine | spring making machines |
| 1,508,753 | Sep. 16, 1924 | F.H. Sleeper, J.A. Horton | Machine for cutting wire into lengths | wire gauging and cutting machines |
| 1,518,707 | Dec. 09, 1924 | F.H. Sleeper | Planer or shaper | metal planers |
