Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 6736721 | Stalk and chaff distribution arrangement A stalk and chaff distribution arrangement in an agricultural harvesting machine having a chopping device arranged in a discharge region of the machine includes first and second blowers arranged adjacent to each other in the discharge region and each blower having a... | 05/18/2004 |
