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Lord Kelvin, British mathematician and physicist ; 1897
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| Number | Title | Issue Date |
| 6745849 | Towed implement A towed, agricultural implement includes an undercarriage supported on ground wheels that are attached to the undercarriage by trailing support arms. An adjusting motor is coupled between the undercarriage and a transverse torsion rod having its opposite ends couple... | 06/08/2004 |
| 5647440 | Forward-folding, winged, implement frame An improved frame for a drawn agricultural implement, such as a planter, includes a telescoping main frame. The main wheel set is mounted to a sliding carriage to support the central main frame, and may be moved between a forward and a rear position. As t... | 07/15/1997 |
| 5590611 | Liquid fertilizer injection system A liquid fertilizer injection system is provided that includes a single coulter blade mounted on a support arm extending from a bracket which is adapted to be pivotally coupled to an attachment apparatus which attaches the system to a propulsion means. A ... | 01/07/1997 |
| 4009759 | Cultivator apparatus A cultivator apparatus attached to a draw bar hitched to a tractor and having a tool bar attached to the draw bar and movable therewith. A cultivating mechanism is attached to the tool bar and is movable between positions of engagement and disengagement w... | 03/01/1977 |
| 3952490 | Lawn rake A lawn rake consisting of an elongated frame bar carried for vertical tilting movement on a transverse axis by a pair of ground-engaging wheels, and having a handle at one end thereof and tines at its opposite end adapted to be moved into or out of engage... | 04/27/1976 |