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 |
| 7690102 | Apparatus for producing pillow-shaped, preferably filled, hollow bodies An apparatus includes a crimping device for producing individual, pillow-shaped, preferably filled, hollow bodies from plastically deformable tubes separated transversely to their longitudinal direction and delimited at opposite ends by crimped edges. The crimping d... | 04/06/2010 |
| 5175573 | Film transport device Apparatus for intermittent or continuous transport of a film using a film transport device comprising a drive motor whose shaft firstly is connected with a sprocket engaging at least one row of holes in the film and secondly with a position sensor which d... | 12/29/1992 |
| 5110201 | Film transport device Film transport device with a film transport sprocket driven by a drive motor whose teeth engage the holes in a motion picture film with play and transport the latter stepwise one frame at a time and final-position it at a film gate. The film transport ste... | 05/05/1992 |
| 5106185 | Control and regulating device for film transport in a film projector Control and regulating device for film transport in a film projector, with winding plates (62, 72) located on both sides of a film gate (8) and drivable by a single motor (61, 71), and with supply and takeup devices (3, 4) likewise disposed between the wi... | 04/21/1992 |
