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 |
| 6695016 | Housing of a device for the treatment of gases hotter than the ambient temperature A housing of a device for the treatment of gases hotter than the ambient temperature, in particular flue gases, comprises an exterior frame made of supports. At the interior side of said frame an insulating wall is arranged which comprises an interior sid... | 02/24/2004 |
| 5591904 | Apparatus for diminishing intake vortexes in jet engines For the purpose of diminishing intake vortexes at jet engines with turbo-compressors of aircrafts, in particular during test runs, an apparatus is provided, which consists of a grating disposed near the ground below and directly in front of the engine inl... | 01/07/1997 |
| 5036639 | Plate for false floors A load-bearing plate for false floors includes a plurality of mutually parallel and spaced apart approximately C-shaped metal profiles. The profiles have open bottoms and having tops with parallel, transversely extending recesses formed therein. Bolts are... | 08/06/1991 |
