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| Patents for A. H. Abell | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 583,935 | Jun. 08, 1897 | F.E. Case, W.B. Potter | Series Parallel Controller | |
| 609,681 | Aug. 23, 1898 | A.J. Kniffen | Router Plane with Sleeves to Hold the Cutter | ||