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| Patents for John H. Whitaker | |||||
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| Number | Date | Patentee | Title | Type | |
| 175,540 | Mar. 28, 1876 | J.H. Whitaker | Improvement in picket-pointing machines | stick pointing machines | |
| 181,230 | Aug. 15, 1876 | J.H. Whitaker | Improvement in cutter-heads | cutterheads | |