| Patents for William R. Kiefer |
Patents 1 -
5
of 5
      |
| Number | Date | Patentee | Title | Type |
| 2,589,309 | Mar. 18, 1952 | J.E. Tompkins | Circular saw safety guard | woodworking machine safety guards |
| 2,590,093 | Mar. 25, 1952 | C.F. Duerr, Jr. | Hand-operated motor-driven radial machine tool | radial arm saws |
| 2,590,119 | Mar. 25, 1952 | E.J. Osterhus | Power-operated radial sawing machine | radial arm saws |
| 2,621,686 | Dec. 16, 1952 | J.E. Tompkins | Machine tool with motor-driven rotary and axially fed tools | radial arm saws |
| 2,628,643 | Feb. 17, 1953 | J.E. Tompkins | Moving-arm radial arm saw | radial arm saws |
