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| Patents for Harvey M. Allison | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,835,687 | Dec. 08, 1931 | H.M. Allison | Backing-Off Mechanism for Grinding Machines | grinding attachments | |
| 1,835,733 | Dec. 08, 1931 | H.M. Allison, E.A. Walker | Backing Off Mechanism for Grinding Machines | grinding attachments | |
| 1,854,242 | Apr. 19, 1932 | E.A. Walker, H.M. Allison | Machine for Measuring Taps | measurement gauges | |
| 1,854,244 | Apr. 19, 1932 | E.A. Walker, H.M. Allison | Machine for Measuring Two-Fluted Taps | measuring tools | |