| Patents for Frederick W. Hoefer |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 506,865 | Oct. 17, 1893 | D.C. Stover, F.W. Hoefer, E.A. Hoefer, A. Hoefer | Sensitive drill | drill presses |
| 542,694 | Jul. 16, 1895 | F.W. Hoefer, D.C. Stover | Sensitive drill press | drill presses |
| 542,695 | Jul. 16, 1895 | F.W. Hoefer, D.C. Stover | Variable-speed sensitive drill press | drill presses |
| 729,864 | Jun. 02, 1903 | E.A. Hoefer, A.G. Hoefer, F.W. Hoefer | Wire Gaging and Cutting Machine | wire gauging and cutting machines |
| 766,883 | Aug. 09, 1904 | E.A. Hoefer, A.G. Hoefer, F.W. Hoefer | Drilling Machine | drill presses |
| 841,396 | Jan. 15, 1907 | F.W. Hoefer | Machine for Threading Pipes | pipe threading machines |
| 1,164,813 | Dec. 21, 1915 | F.W. Hoefer, C.A. Hoefer | Multiple-spindle drill-head | wood drilling and boring |
