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| All Patents in class 384/203 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,011,493 | Aug. 13, 1935 | E.P. Larsh | Self aligning bearing | motor bearings | |
| 2,813,762 | Nov. 19, 1957 | P.K. Bridenbaugh | Self Aligning Bearing | industrial machine bearings | |