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| Patents for Daniel E. True | |||||
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| Number | Date | Patentee | Title | Type | |
| 16,814 | Mar. 10, 1857 | C.P. Wardwell | Circular sawing machine | tablesaws | |
| 17,536 | Jun. 09, 1857 | C.P. Wardwell | Improvement in cheese-hoops | ||
| 43,886 | Aug. 16, 1864 | D.E. True | Lathe Tool | lathe tools | |