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| Patents for A. G. Chadwick | |||||
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| Number | Date | Patentee | Title | Type | |
| 103,335 | May 24, 1870 | L.D. Howard | Improvement in saw-bucks | work holding | |
| 111,746 | Feb. 14, 1871 | L.D. Howard | Improvement in adjustable bevels | bevels | |
| 111,747 | Feb. 14, 1871 | L.D. Howard | Improvement in clothes-driers | ||
| 126,549 | May 07, 1872 | L.D. Howard | Improvement in rein-holders for carriages | ||