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| All Patents in class 138/141 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,674 | Jul. 28, 1846 | A. McBurth | Using cloth to strengthen veneer | veneer machines | |
| 11,282 | Jul. 11, 1854 | W. McKinstry | Adjustable bearing for circular saws | circular sawmills | |
| 142,528 | Sep. 02, 1873 | M. Stephens | Improvement in cement-lined pipes | pipes | |
| 409,265 | Aug. 20, 1889 | A. Wyckoff, E.L. Wyckoff | Pipe casing or conduit | ||