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| All Patents in class 266/164 | |||||
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| Number | Date | Patentee | Title | Type | |
| 67 | Oct. 24, 1836 | R. Mills, R. Mayo | Mode of Ventilating and Supplying Houses, &c., with Warm or Cool Air | stove pipes | |
| 7,862 | Dec. 24, 1850 | J.N. Walker | Mill for grinding | grist mills | |