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| Patents for L. F. McCrea | |||||
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| Number | Title | Classification(s) | |||
| 771,501 | Feed-roll for planing-machines | 144/250.1 | |||
| 856,726 | Cutter-head-knife sharpener | 144/114.1, 451/421 | |||
| 881,086 | Variable-speed mechanism | 474/75 | |||