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| Patents for S. B. Spear | |||||
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| Number | Date | Patentee | Title | Type | |
| 139,124 | May 20, 1873 | W.H. Dobson | Improvement in saw-setting machines | saw sharpening machines | |
| 152,370 | Jun. 23, 1874 | J.L. Haven | Improvement in bedsteads | ||
| 152,371 | Jun. 23, 1874 | J.L. Haven, G.H. Knight | Improvement in furniture-fastenings | furniture hardware | |