| Patents for D. P. Holloway |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| RE2,484 | Feb. 19, 1867 | P. Geiser | Improvement in grain separators | corn and grain separators |
| 81,898 | Sep. 08, 1868 | S.M. Hamilton | Improvement in planing-machines | wood shapers |
| 89,239 | Apr. 20, 1869 | T.T. Prosser | Improved furnace for liberating and using the gaseous products of coal | |
| 89,241 | Apr. 20, 1869 | T.T. Prosser | Improvement in steam-generators | steam generators |
| 91,965 | Jun. 29, 1869 | T.T. Prosser | Improved machine for forming threads on screws | |
| 278,128 | May 22, 1883 | W.H. Gray | Shingle-sawing machine | shingle machines |
