| Patents for H. S. Sprague | 
| Patents 76 - 
					90
					of 99 
       | 
| Number | Date | Patentee | Title | Type | 
| 297,492 | Apr. 22, 1884 | C. Bovensiep | Calipers | calipers | 
| 302,644 | Jul. 29, 1884 | H.C. Albee | Concentric lathe | wood lathes | 
| 305,868 | Sep. 30, 1884 | A.F. Ward | Machine for pointing and lapping hoops | hoop making machines | 
| 307,348 | Oct. 28, 1884 | J.W. Stokoe | Feed mechanism for saw-mill carriages | sawmill feed works | 
| 307,349 | Oct. 28, 1884 | J.W. Stokoe | Feed mechanism for saw-mill carriages | sawmill feed works | 
| 307,881 | Nov. 11, 1884 | L.B. Swartwout | Turbine wheel | turbine water wheels | 
| 307,926 | Nov. 11, 1884 | W.M. Dwight | Planer-matcher for making flooring and ceiling | wood planers | 
| 308,139 | Nov. 18, 1884 | T.J. Clinton, D. Agroff | Machine for scraping and splitting rattan | rattan machines | 
| 309,339 | Dec. 16, 1884 | W.M. Dwight | Planing and matching machine | matchers | 
| 313,294 | Mar. 03, 1885 | T. Craney, C.C. Barker | Log-crib |  | 
| 318,597 | May 26, 1885 | H. Burton | Cut-off valve | steam engines | 
| 319,624 | Jun. 09, 1885 | G.W. Rodebaugh | Saw-guide | sawmill accessories | 
| 321,716 | Jul. 07, 1885 | J.T. Hall | Lath-sawing machines | lath making machines | 
| 324,223 | Aug. 11, 1885 | W.A. Campbell | Feed mechanism for sawmill carriages | sawmill carriages | 
| 326,000 | Sep. 08, 1885 | F.A. Wellman | Scythe-snath lathe | wood lathes |