| Patents for William P. Hilger |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 2,220,370 | Nov. 05, 1940 | W.P. Hilger, R.E. McFadden, J.E. Swalinkavich, Jr. | Drum for smoothing surfaces | floor sanders |
| CA-402,418 | Jan. 20, 1942 | R.E. McFadden, J.E. Swalinkavich, Jr. | Drum for smoothing surfaces | floor sanders |
| 2,337,468 | Dec. 21, 1943 | W.P. Hilger | Shipping container for breakable sheets | |
| D154,851 | Aug. 16, 1949 | W.P. Hilger | Design for a floor sander | floor sanders |
| 2,483,904 | Oct. 04, 1949 | W.P. Hilger | Floor sanding edger | floor sanders |
| 2,486,947 | Nov. 01, 1949 | W.P. Hilger | Surface finishing device | floor sanders |
| 2,565,658 | Aug. 28, 1951 | W.P. Hilger | Floor sanding edger | floor sanders |
