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| Patents for A. J. Bowen | |||||
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| Number | Title | Classification(s) | |||
| 2,656 | Machinery for grinding and polishing metallic surfaces, particularly saw-plates | 451/137 | |||
| 3,550 | Inking-roller | 101/364, 209/365.2 | |||
| 3,551 | Printing-press | 101/286 | |||