| All Patents in class 29/DIG.068 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
 | 195,626 | Sep. 25, 1877 | F. McDonough | Improvement in devices for cooling saws |
 | 575,737 | Jan. 26, 1897 | A.S. Robinson | Machine for grinding knives of cutter-bars |
 | 1,146,193 | Jul. 13, 1915 | W.L. Miller | Fluid-pressure chuck-actuating device |
| | 1,281,420 | Oct. 15, 1918 | J.S. Reid | Boring Apparatus |
| | 1,662,313 | Mar. 13, 1928 | E. Henrikson | Pipe-Coupling Tapping Machine |
 | 1,971,790 | Aug. 28, 1934 | A.W. Mall | Portable power tool |
| | 2,097,730 | Nov. 02, 1937 | A.W. Mall | Terrazzo grinding apparatus |
| | 2,315,891 | Apr. 06, 1943 | J.Y. Blazek, V.R. Roy, G.E. Sears | Apparatus for resurfacing |
 | 2,372,699 | Apr. 03, 1945 | H.V. Boehnke, C.A. Wiken | Cutting machine |
 | 2,413,016 | Dec. 24, 1946 | H.V. Boehnke, C.A. Wiken | Cutting machine |
