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| All Patents in class 29/DIG.078 | |||||
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| Number | Date | Patentee | Title | Type | |
| 146,115 | Dec. 30, 1873 | G.C. Westover | Improvement in suction-tubes for planing-machines, &c. | wood planers | |
| 1,228,520 | Jun. 05, 1917 | G.J. Behringer | Sandpapering-machine | sanding machines | |
| 1,986,378 | Jan. 01, 1935 | J.A. Smith | Apparatus for air purification | ||
| 1,991,337 | Feb. 12, 1935 | J.C. Smith | Dust separating apparatus | ||
| 2,103,893 | Dec. 28, 1937 | E.E. Buskirk | Portable air purifier unit | dust collectors | |