| Patents for Harry N. Covell |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
| | 710,954 | Oct. 14, 1902 | H.N. Covell | Drum-reversing device for winding-engines |
| | 715,338 | Dec. 09, 1902 | H.N. Covell, C.A. Baechtold | Swinging-gear for derrick engine |
| | 715,991 | Dec. 16, 1902 | C.A. Baechtold, H.N. Covell | Derrick swinging and controlling device |
| | 718,916 | Jan. 20, 1903 | H.N. Covell | Combined brake and friction operating mechanism |
| | 765,659 | Jul. 26, 1904 | H.N. Covell | Rope-drum engine |
| | 802,844 | Oct. 24, 1905 | C.A. Baechtold, H.N. Covell | Reversible driving device |
| | 812,827 | Feb. 20, 1906 | H.N. Covell | Brake-band |
 | 930,354 | Aug. 10, 1909 | H.N. Covell | Logging-locomotive |
| | 933,825 | Sep. 14, 1909 | H.N. Covell | Road Engine |
 | 967,331 | Aug. 16, 1910 | H.N. Covell | Winch |
