...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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| Application No. | Application Title | Issue Date |
| 20060243463 | Rotatable implement with end-mounted motor An implement for mounting on a working vehicle includes a frame with side supports. A rotatable implement head includes a cross tube supported for rotation between the side supports. The drive assembly is positioned partially within the cavity in a protected position, s... | 11/02/2006 |