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| All Patents in class 73/65.01 | |||||
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| Number | Date | Patentee | Title | Type | |
| 260,127 | Jun. 27, 1882 | C. Seymour | Proportional balance | woodworking machine sharpening mechanisms | |
| 557,140 | Mar. 31, 1896 | E.A. Munson | Proportional Weighing Apparatus | scales and balances | |
| 1,774,718 | Sep. 02, 1930 | H.B. McCabe | Apparatus for Bringing an Unbalanced Rotative Body into a State of Balance | balancing gauges | |