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| Number | Title | Issue Date |
| 4632165 | Method and apparatus for milling and grooving wooden framing members esp. halving joints A method and an apparatus are disclosed for cutting pairs of symmetrical bevels on opposite sides of halving joints used for windows, doors, and the like, and a groove-like recess on a third side of the workpiece. The first pair of bevels is cut on one si... | 12/30/1986 |
| 4230163 | Log-planing machine Apparatus for surface cutting logs to provide a finished surface corresponding to the natural surface contour of the log or to impart a predetermined distinctive surface contour thereto and a method of effecting such surface contouring; said apparatus com... | 10/28/1980 |
