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| All Patents in class 73/482 | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 260,127 | Jun. 27, 1882 | C. Seymour | Proportional balance | |
| 1,774,718 | Sep. 02, 1930 | H.B. McCabe | Apparatus for Bringing an Unbalanced Rotative Body into a State of Balance | ||