| All Patents in class 408/21 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 3,872 | Dec. 31, 1844 | R.S. Hannaford, R.H. Penny, W.F. Converse | Machinery for Cutting Screws in the Posts and On the Rails of Bedsteads | wood threading machines |
| 146,118 | Dec. 30, 1873 | J.B. Wright | Improvement in scroll-saws | scrollsaws |
| 319,502 | Jun. 09, 1885 | G.G. Morrison | Combined Drilling and Boring Machine | drilling and boring |
| 670,672 | Mar. 26, 1901 | G.W. Hoadley | Combination Metal and Wood Working Machine | drilling and boring |
| 838,827 | Dec. 18, 1906 | J.S. Waugh | Portable door-mortising machine | mortising machines |
| 1,515,620 | Nov. 18, 1924 | W.S. Runnels | Drilling and routing machine | printer |
| 2,341,383 | Feb. 08, 1944 | W.J. Johnson | Precision Boring Machine | horizontal boring mills |
| 2,927,612 | Mar. 08, 1960 | J.W. Edgemond, Jr., H. Goldschmidt | Combination wood-working machine | tablesaws |
