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| Patents for John R. Rowlands | |||||
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| Number | Date | Patentee | Title | Type | |
| 293,360 | Feb. 12, 1884 | J.R. Rowlands | Driving Mechanism for Fan Blowers | blacksmith | |
| 300,283 | Jun. 10, 1884 | J.R. Rowlands | Driving mechanism for fan-blowers | blacksmith | |
| 307,229 | Oct. 28, 1884 | J.R. Rowlands | Bolt Cutter | blacksmith | |