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 |
| 5868744 | Electrosurgical instrument for therapeutic treatment of varices An electrosurgical instrument is useful for therapeutic treatment of varices, especially small varicose dilatations of the cutaneous veins. A surgical instrument is provided for rapid, reliable and minimally discomforting therapy of small varicose dilatat... | 02/09/1999 |
