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| Patents for Elvin E. Hallander | |||||
| Number | Date | Patentee | Title | Type | |
| 2,512,565 | Jun. 20, 1950 | E.E. Hallander | Spring-applied electromagnetic released brake | ||
| RE23,362 | May 01, 1951 | E.E. Hallander | Spring-applied electromagnetic released brake | ||