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| Patents for Perley P. Pitkin | |||||
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| Number | Date | Patentee | Title | Type | |
| RE5,048 | Sep. 03, 1872 | D. Lane | Improvement in head-blocks for sawmills | sawmills | |
| 136,656 | Mar. 11, 1873 | D. Lane | Improvement in head-blocks for saw-mills | sawmill headblocks | |
| 136,657 | Mar. 11, 1873 | D. Lane | Improvement in head-blocks for saw-mills | sawmill headblocks | |