| All Patents in class 384/243 | 
| Patents 1 - 
					5
					of 5 
       | 
| Number | Date | Patentee | Title | Type | 
| 21,199 | Aug. 17, 1858 | G. Hotchkiss | Mode of securing and adjusting the steps of mill-spindles |  | 
| 123,562 | Feb. 13, 1872 | J.P. Grosvenor | Improvement in lubricating-boxes and bearings for upright shafts | woodworking machine lubrication | 
| 392,732 | Nov. 13, 1888 | A.B. Hutchinson | Box for upright spindles | woodworking machine mechanisms | 
| 1,059,313 | Apr. 15, 1913 | H.A. Perkins | Step bearing for machinery | woodworking machine mechanisms | 
| 1,262,529 | Apr. 09, 1918 | C.A. Lowe | Grinding Mill |  |