| Patents for Elmer Harrold |
Patents 1 -
15
of 19
      |
| Number | Date | Patentee | Title | Type |
| 509,029 | Nov. 21, 1893 | A. Harrold | Sawmill dogging mechanism | sawmill dogs |
| 715,061 | Dec. 02, 1902 | E. Harrold | Photographic timer | |
| 735,503 | Aug. 04, 1903 | C.G. Wilderson, E. Harrold | Molding flask | foundryman |
| 773,495 | Oct. 25, 1904 | E. Harrold, C.G. Wilderson | Attachment for sharpening bandsaws | cutter grinding |
| 779,158 | Jan. 03, 1905 | E. Harrold, C.G. Wilderson | Upper adjusting device for bandsaws | bandsaws |
| CA-93,435 | Jun. 06, 1905 | E. Harrold, C.G. Wilderson | Band saw | bandsaws |
| 814,652 | Mar. 06, 1906 | E. Harrold, C.G. Wilderson | Bandsaw machine | bandsaws |
| 943,540 | Dec. 14, 1909 | E. Harrold | Cutter-head | |
| 1,035,187 | Aug. 13, 1912 | E. Harrold | Frame for wood-planing machines | wood planers |
| 1,050,455 | Jan. 14, 1913 | E. Harrold | Cutter-head-knife-adjusting wrench | wrenches |
| 1,050,649 | Jan. 14, 1913 | E. Harrold, C.G. Wilderson | Saw-guard | woodworking machine safety guards |
| D44,126 | Jun. 03, 1913 | E. Harrold | Design for a guard for band-saws | bandsaws |
| 1,068,239 | Jul. 22, 1913 | E. Harrold, C.G. Wilderson | Bandsaw guard | bandsaws |
| 1,088,501 | Feb. 24, 1914 | E. Harrold, C.G. Wilderson | Woodworking machine | drilling and boring |
| 1,150,677 | Aug. 17, 1915 | E. Harrold | Cutter-blade for jointers and planers | cutters |
