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 |
| 5530318 | EL lamp with integral fuse and connector An electroluminescent lamp includes at least one bus bar attached to an electrode of the lamp. The bus bar has a gap and a conductive trace bridges the gap. The trace is preferably an isolated segment of the front electrode of the lamp and is made when th... | 06/25/1996 |