| Patents for H. S. Sprague | 
| Patents 46 - 
					60
					of 99 
       | 
| Number | Date | Patentee | Title | Type | 
| 221,344 | Nov. 04, 1879 | R.H. Nogar | Hoop machine | hoop making machines | 
| 222,297 | Dec. 02, 1879 | J. Michels | Improvement in hoop sawing and finishing machines | hoop making machines | 
| 223,968 | Jan. 27, 1880 | A.F. Ward | Hoop-coiling machine | hoop making machines | 
| 223,997 | Feb. 03, 1880 | T. Craney | Saw-mill dog | sawmill dogs | 
| 225,075 | Mar. 02, 1880 | G.A. Raupp | Barrel-hoop machine | hoop making machines | 
| RE9,251 | Jun. 15, 1880 | W. Goldie | Shingle-cutting machine | shingle machines | 
| RE9,257 | Jun. 15, 1880 | W. Goldie | Machine for cutting shingles | shingle machines | 
| 228,766 | Jun. 15, 1880 | C. Kinney | Bench Plane Gage | plane fences | 
| 229,258 | Jun. 29, 1880 | C. Kinney | Marking and Slitting Gage | slitting gauges | 
| 230,499 | Jul. 27, 1880 | G.W. Rodebaugh | Saw-guide | sawmill accessories | 
| 236,060 | Dec. 28, 1880 | H. Molby | Tenoning-machine | tenoning machines | 
| 238,467 | Mar. 01, 1881 | F.L. Wilson | Hoop-cutting machine | hoop making machines | 
| 239,730 | Apr. 05, 1881 | C.E. Chittenden | Hoop-cutting machine | hoop making machines | 
| 239,903 | Apr. 05, 1881 | F.L. Wilson | Rotary veneer slicer | veneer machines | 
| 241,928 | May 24, 1881 | C.M. Clancy | Hoop-machine | hoop making machines |