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 |
| 5938071 | Test stand for calibrating seed meters An apparatus for calibrating a conventional seed meter to achieve the lowest error rate of seed spacing and single seed placement per space. The apparatus having an endless belt with cells formed integrally and mounted on a track system with vertically sp... | 08/17/1999 |
| 5845822 | Inertia-activated dispenser for insecticide A dispenser or applicator for dry insecticide includes a container having a removable cover; the cover is attached to a lower end of an elongate handle having a hand grip at its top A partition inside the container is the floor of the insecticide containe... | 12/08/1998 |
| 5465869 | Garden seeder A tool for depositing seed uniformly along a prepared furrow. The tool uses the rolling motion of a ground engaging wheel to drive a seed pickup and delivery mechanism. A pickup wheel which is coupled to the ground engaging wheel contacts the seeds via a ... | 11/14/1995 |
| 4738208 | Metered seed planting apparatus A metered seed planting apparatus (10) comprising a shoe unit (11); a pivoted seed hopper unit (12); an adjustable seed metering unit (13); a vertically adjustable furrow plow unit (14); a seed bed covering unit (15); and, a wheeled marking unit (60); whe... | 04/19/1988 |
| 4466365 | Manually manipulated agricultural implement with seed enclosure having tooth members extending out of holes in the enclosure A manually operated tool for simultaneously preparing a seed bed, feeding seed and dispersing the seed uniformly in the bed consists of a rake-like structure, the head of which is integrated with an appendage bearing enclosure for containing a supply of s... | 08/21/1984 |
| 4315580 | Hand held seed planter with roller wheel structure A row seed planter for planting seeds in a prepared furrow in home gardens having a ground-engaging wheel-like seed reservoir and dispenser rotatable subassembly rotatably journaled on the lower end of an elongated handle member adapted to be hand-grasped... | 02/16/1982 |
