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| All Patents in class 248/578 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,574,087 | Feb. 23, 1926 | O.H. Hansen | Chair spring | ||
| 1,574,088 | Feb. 23, 1926 | O.H. Hansen | Chair | ||
| 1,586,166 | May 25, 1926 | C.J. Travers | Chair iron | ||
| 1,589,847 | Jun. 22, 1926 | O.H. Hansen | Chair | ||