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| Patents for Albert Allen | |||||
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| Number | Date | Patentee | Title | Type | |
| 299,915 | Jun. 03, 1884 | D.C. Cumings | Counter-shaft | industrial machine pulleys and belt drive mechanisms | |
| 2,228,902 | Jan. 14, 1941 | A. Allen | Automatically Controlled Machine Tool and Follow-Up System | metalworking machine mechanisms | |