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 |
| 6125475 | Utility suspenders Utility suspenders for use by individuals in the construction trades. The suspenders include a pair of padded and stretchable straps for suspension from the shoulders of a user. Clips, adapted to firmly grip a tool belt, are secured to the front and rear ... | 10/03/2000 |
| 5177813 | Shirttail retaining harness A shirttail retaining harness (10) is disclosed comprising a pair of elongate straps (12, 14), a means for connecting the straps to a garment (18) and, a connecting member (16) which retains a portion of the straps in spaced relation. The connecting membe... | 01/12/1993 |
| 4967421 | Physiologically conformable suspenders for firefighters' bunker pants Adjustable fire fighters' suspenders that are physiologically conformable when used with bunker pants. The suspenders are designed for comfort, proper fit, and flexibility in movement that corresponds with the movement of the wearer during normal fire fig... | 11/06/1990 |