| All Patents in class 408/30 |
Patents 31 -
45
of 48
      |
| Number | Date | Patentee | Title | Type |
| 444,596 | Jan. 13, 1891 | A.P. Lanterman | Mortising-chisel | mortise chisels |
| 447,270 | Feb. 24, 1891 | J.A. Aycock, W.C. Aycock | Blind-stile boring and mortising machine | mortising machines |
| 493,444 | Mar. 14, 1893 | L.O. Orton | Mortising-bit | drill bits |
| 605,614 | Jun. 14, 1898 | L.H. Sholder | Combined Auger and Cutter | chisels |
| 625,008 | May 16, 1899 | J.D. Wood | Hand-powered timber mortising machine | human powered machines |
| 646,576 | Apr. 03, 1900 | L.W. Greenleaf, G.W. Greenleaf | Mortising-machine | mortising machines |
| 673,737 | May 07, 1901 | W.J. Smith | Mortising-machine | mortising machines |
| 788,941 | May 02, 1905 | A.Y. Pearl | Auger | auger bits |
| 904,796 | Nov. 24, 1908 | J. Moore | Auger | drill bits |
| 1,401,469 | Dec. 27, 1921 | A.H. Hawkinson | Chisel for hollow-chisel mortiser | mortise chisels |
| 1,725,515 | Aug. 20, 1929 | E.W. Peterson, A.H. Hawkinson | Method of sharpening hollow or mortiser chisels | sharpening machines |
| 1,785,351 | Dec. 16, 1930 | W.M. Knourek | Mortising tool | mortise chisels |
| 2,074,095 | Mar. 16, 1937 | B. Sassen | Combined Pattern Controlled Machine Tool | profiling machines |
| 2,092,755 | Sep. 14, 1937 | J.P. Francesco | Boring tool | mortising machines |
| 2,343,603 | Mar. 07, 1944 | W.S. Whiting, Jr. | Cutting and boring machine | wood drilling and boring |
