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 |
| 4112697 | Method of producing and installing offshore structures The method uses a construction and launch barge having a shallow draft hull with a construction deck supporting at its center a floatable offshore structure both during construction thereof and during the towing of the barge to the site where the offshore... | 09/12/1978 |
| 4015554 | Construction and launch barge and method of producing and installing offshore structures A construction and launch barge having a shallow draft hull with a construction deck supporting at its center a floatable offshore structure both during construction thereof and during the towing of the barge to the site where the offshore structure is to... | 04/05/1977 |
| 4000624 | Multi-component offshore platform A multi-component offshore platform having a floatable and ballastable central column with a base that is adapted to rest on the bottom of the sea. The column is towed to its site while floating and then upended and ballasted to sink the base to the prope... | 01/04/1977 |
