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| All Patents in class 414/743 | |||||
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| Number | Date | Patentee | Title | Type | |
| 278,022 | May 22, 1883 | L.T. Kline | Log-roller | sawmill accessories | |
| 2,240,723 | May 06, 1941 | R.G. Stoehr | Airplane lifting and supporting system | ||