Did You Know...
...that while attempting to develop a super strong glue, 3M employee Spencer Silver accidentally developed a glue that was so weak it would barely hold two pieces of paper together? However, his colleague Art Fry needed the glue. Fry sang with his church choir and marked the pages of his hymnal with small scraps of paper that often fell out. He used Silver's glue to hold the papers in place. Today we call this invention Post-it Notes.
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| Number | Title | Issue Date |
| 7154061 | Interrupter assembly for a circuit breaker A preferred embodiment of an interrupter assembly for a circuit breaker includes a first contact, a conductor, and a second contact mounted on the conductor. The second contact and the conductor are movable in relation to the first contact between a first position w... | 12/26/2006 |
| 4611189 | Underoil primary circuit breaker An underoil primary circuit breaker having a fixed contact assembly and a rod contact, a trip-free latch mechanism for moving the rod contact toward and away from the fixed contact, a temperature responsive magnetically controlled trip assembly for releas... | 09/09/1986 |
