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| Patents for Elias Howe | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,406X | Sep. 13, 1834 | E. Howe | Mattresses of palm leaf | ||
| RX-31 | Mar. 18, 1841 | E. Howe | Improvement in the application of material called palmofleaf or brub grass to the stuffing of beds, mattresses, sofas, cushions, and all other uses for which hair, feathers, moss, or other soft and elastic substances are used | ||