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| Patents for A. N. Spencer | |||||
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| Number | Date | Patentee | Title | Type | |
| 258,031 | May 16, 1882 | W.H. Doane, G.W. Bugbee | Spoke-throating machine | wheelwright | |
| 259,000 | Jun. 06, 1882 | W.H. Doane, G.W. Bugbee | Mortising machine | mortising machines | |
| 328,391 | Oct. 13, 1885 | W.H. Doane | Centering device for tenoning and other machines | tenoning machines | |
| 401,299 | Apr. 09, 1889 | G.W. Passel | Pressure-bar for planing-machines | wood planers | |