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| All Patents in class 384/6 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,256,318 | Sep. 16, 1941 | H.A. Hadley | Bearing Structure | industrial machine bearings | |
| 2,312,250 | Feb. 23, 1943 | D.P. Jacobus | Bearing Means | scales and balances | |
| 3,103,390 | Sep. 10, 1963 | J.D. Hale | Scale Suspension System | scales and balances | |