Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 4595064 | Drag attachment for a disk A drag attachment for a disk or cultivating implement which includes a linkage system mounted in cooperation with a fluid cylinder apparatus for raising and lowering the disk transport wheels, which linkage system includes a pair of drive arms connected t... | 06/17/1986 |
| 4579179 | Row crop cultivator An improved cultivator having support wheels swingably and adjustably mounted under its frame to easily adjust the depth of the cultivating elements. The improved cultivator also has support bars arranged in pairs and carrying cultivating elements thereon... | 04/01/1986 |
| 4270339 | Variable width tool attachment for use with a vehicle A variable width tool attachment for use with a vehicle is herein described as generally comprising a complete tool which is split vertically and in the direction of vehicle travel to form two half tools. The two half tools are slidably mounted for mutual... | 06/02/1981 |
| 4037670 | Motor grader with blade clamping mechanism An improved blade clamping mechanism for a motor grader blade which has blade support rails carried in pivoted blade support means for lateral sliding movement, and in which confining surfaces in the blade support means restrict both vertical and fore-and... | 07/26/1977 |
| 4033417 | Agricultural machine A support is connectable with an agricultural machine, and a plurality of agricultural tools is provided which are mounted by mounting elements on the support so that they can be adjusted relative to the support. A single arresting element is provided whi... | 07/05/1977 |
