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| Patents for John Richardson | |||||
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| Number | Date | Patentee | Title | Type | |
| 399X | Sep. 13, 1802 | J. Richardson | Evaporating furnace | industrial furnaces | |
| 442X | Apr. 04, 1803 | J. Richardson | Improvement in his evaporating furnace | industrial furnaces | |
| 6,281 | Apr. 10, 1849 | W. Hunt | Safety pin | sewing tools | |