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| Patents for John H. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| RX-57 | Oct. 20, 1843 | L. Disbrow | Imrpovement in apparatus for boring earth for water | ||
| 36,138 | Aug. 12, 1862 | V. Chase | Improvement in tenoning-machines | tenoning machines | |