Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7946231 | Single arm row cleaner A single arm row cleaner unit mountable to a grain drill opener arm includes a row cleaner arm and a mounting saddle. The mounting saddle is generally configured for attachment to a main arm of a furrow forming assembly. A row cleaner arm may be pivotally attached t... | 05/24/2011 |
| 7104204 | Automatic pneumatic seal between frame members A seeding machine is provided with a frame comprising a center frame section and left and right wing frame sections. The frame has a planting configuration and a transport configuration. The center frame section and the left and right wing frame sections each have a... | 09/12/2006 |
| 6945182 | Midrow levelling attachment for a seeder A midrow levelling attachment for a seeder includes a set of leveller gangs each of which is mounted on a respective one of the packer wheel gangs of the seeder by a pair of mounting members one at each end of the common shaft of the leveller gang. The levelling rol... | 09/20/2005 |
| 6834598 | Agricultural ground working implement An agricultural ground working implement is provided with a first ground working unit and a second ground working unit that follows the first ground working unit. A row cleaner is assigned to the portion of the soil upon which the second ground working unit acts. Th... | 12/28/2004 |
| 6098722 | Versatile implement system A versatile implement system utilizing a single implement structure that is capable of being utilized as a grain planter, row crop planter, tiller or anhydrous applicator. The inventive device includes a conventional implement frame, a bracket, a pair of ... | 08/08/2000 |
| 5826524 | Seed forming wheel support having a lockup link A support for a seed firming wheel of an agricultural planter. The support comprises a frame member, a link pivotally coupled to the frame member and a spring positioned between the link and frame member. The frame member is also provided with a pivot ass... | 10/27/1998 |
| 5181476 | Equipment system for agricultural ground soil preparation The equipment system consists essentially of the undercarriage 101 having supporting wheels, the rotary device with dovetailing prongs 102, the sowing machine 103 and the land roller or clod breaker apparatus 104. The system components may be used in vari... | 01/26/1993 |
| 4478159 | Apparatus for planting seeds and the like An apparatus for planting seed having a frame adapted to be mounted on a vehicle for transport over the earth in a predetermined direction of travel, a source of seed, a furrowing assembly, an arm borne by the frame mounting the furrowing assembly for mov... | 10/23/1984 |
| 4311104 | Press grain drill A press grain drill includes a plurality of opener units mounted on an elongated tow tube and including a plurality of elongated, pivotably coupled elements forming a pair of parallelograms which support a self-penetrating shovel and a press wheel respect... | 01/19/1982 |
