| Patents for Philip D. Rollhaus |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 965,617 | Jul. 26, 1910 | J.J. Weiss | Removable Saw Handle | saw handles |
| 1,070,343 | Aug. 12, 1913 | H.F. Hoffmann | Pipe Wrench | pipe wrenches |
| D44,649 | Sep. 16, 1913 | P. Andersen | Design for a Hammer Head | hammers |
| 1,083,784 | Jan. 06, 1914 | G.L. Wilcox | Locking Device for Hand Drills | eggbeater drills |
| 1,093,432 | Apr. 14, 1914 | L. Kalina | Combination-tool | combination tools |
| 1,104,517 | Jul. 21, 1914 | J.N. Landau | Automatic multiple-chuck drill-press | multiple spindle drill presses |
| 1,138,462 | May 04, 1915 | J.J. Eagan | Valve Spring Compressor | valve spring tools |
| 1,210,147 | Dec. 26, 1916 | E. Cederberg | Door-Scriber and Gage | scribes |
