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 |
| 4884052 | Contact structure for slider position sensor A sliding contact includes a sliding contact piece having a contact segment and fixed to a snap member extending perpendicularly to the contact segment. The snap member has at least two snap portions formed in alignment perpendicular to the contact segmen... | 11/28/1989 |
