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"That’s an amazing invention, but who would ever want to use one of them?"
President Rutherford B. Hayes ; Said in 1876, after Alexander Graham Bell demonstrated the telephone to him at the White House
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| Number | Title | Issue Date |
| 5997024 | Hitch mechanism A hitch mechanism includes a coupler frame supporting a plurality of coupler devices for coupling with an implement. A fixed length link and three variable length links are attached to the coupler frame, has a first end pivotally coupled to the vehicle an... | 12/07/1999 |
| 5449042 | Rephasing controlling/controlled hydraulic cylinders in folding implement frame The invention is directed to a foldable agricultural implement frame having a first pair of controlling/controlled lifting hydraulic cylinders for lifting and lowering the right wing section and the center section together in a level condition, and a seco... | 09/12/1995 |
| 4911248 | Earth compacting apparatus and method An earth compacting apparatus for mounting at one end of an earth working vehicle comprises a plurality of separate compaction units and a pivotal linkage for pivotally mounting the compaction units side by side on a vehicle. An actuator assembly operates... | 03/27/1990 |
| 4793733 | Scarifier A scarifier suspended beneath the body of an automotive vehicle such that it is vertically movable by means of cylinders. It comprises a suspending frame provided on a main frame vertically movable by means of the cylinders so that it may be freely slidab... | 12/27/1988 |
