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| All Patents in class 110/300 | |||||
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| Number | Date | Patentee | Title | Type | |
| 411,379 | Sep. 17, 1889 | E.J. Gordon | Grate-bar | stationary boilers | |
| 465,431 | Dec. 15, 1891 | E.J. Gordon | Grate | stationary boilers | |
| 501,064 | Jul. 11, 1893 | E.J. Gordon | Grate | furnaces | |