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| All Patents in class 474/184 | |||||
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| Number | Date | Patentee | Title | Type | |
| 351,064 | Oct. 19, 1886 | C. McNeal | Wooden pulley | industrial machine pulleys and belt drive mechanisms | |
| 370,495 | Sep. 27, 1887 | I.V. Roy | Wooden Pulley | industrial machine pulleys and belt drive mechanisms | |
| 419,791 | Jan. 21, 1890 | E.J. Pennington | Pulley | industrial machine pulleys and belt drive mechanisms | |