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 |
| 4141168 | Fish catcher A fish catcher to be suspended beneath the water by a fishing line, comprising an elastic linear material bent within its elasticity to form a loop closed by means of a disengageable hook-and-ring latch mechanism, said loop, when the latch mechanism is di... | 02/27/1979 |
