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| Patents for James D. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 3,495 | Mar. 20, 1844 | W. Wood | Machine for cutting shingles | shingle machines | |
| 7,010 | Jan. 08, 1850 | W. Wood | Machine for cutting shingles | shingle machines | |
| 17,907 | Jul. 28, 1857 | W. Wood | Method of feeding the bolt in shingle-machines | shingle machines | |