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| Patents for C. P. Doolittle | |||||
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| Number | Date | Patentee | Title | Type | |
| 246,447 | Aug. 30, 1881 | J. Augspurger | Sawing-machine for cutting down standing timber | tree felling machines | |
| 246,448 | Aug. 30, 1881 | J. Augspurger | Sawing-machine | tree felling machines | |
| 256,032 | Apr. 04, 1882 | E. Myers | Lathe for turning irregular forms | pattern lathes | |
| 262,915 | Aug. 22, 1882 | J. Augsperger | Sawing-machine | drag saws | |