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| Patents for Samuel J. Spray | |||||
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| Number | Date | Patentee | Title | Type | |
| 103,892 | Jun. 07, 1870 | J. Kauffman | Improvement in sawing-machines | human powered machines | |
| 106,187 | Aug. 09, 1870 | C. Mitzelfeld | Improvement in saws | sawblades | |
| 109,005 | Nov. 08, 1870 | J.T. Hall | Improvement in lath-machines | lath making machines | |