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| Patents for Harry B. Lester | |||||
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| Number | Date | Patentee | Title | Type | |
| 333,417 | Dec. 29, 1885 | N. King, H.B. Lester | Machine for making nails | ||
| 334,248 | Jan. 12, 1886 | H.B. Lester | Wire-nail machine | ||
| 464,574 | Dec. 08, 1891 | J.H. Lyon | Screw-driver | spiral screwdrivers | |
| 876,814 | Jan. 14, 1908 | H.B. Lester | Automatic Screw Machine | screw machines | |