Famous Patents
3M employee and church chorister Art Fry needed something to temporarily mark pages in his hymnal. He was in luck because his colleague, Spencer Silver, accidentally developed a glue that was too weak for other purposes. After initially discouraging consumer response, Post-it Notes became a hit in 1979.
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| Number | Title | Issue Date |
| 7024740 | Rotating table apparatus A rotating table apparatus using a cam mechanism and having a higher precision than a conventional rotating table is realized. A rotating table apparatus having a driven shaft supported by a housing and driven by a driving device, and a rotating table which is rotat... | 04/11/2006 |
| 6862786 | Rotating table apparatus A rotating table apparatus using a cam mechanism and having a higher precision than a conventional rotating table is realized. A rotating table apparatus having a driven shaft supported by a housing and driven by a driving means, and a rotating table which is rotati... | 03/08/2005 |
| 6591726 | Orientation device for turret punching machine A orientation device including two turrets, carrying a plurality of punch-die pairs, are rotatable to carry a punch-die pair to a work station and, simultaneously, another punch-die pair to a changeover station. A magazine of punch-die pairs comprises at ... | 07/15/2003 |
| 5720089 | Tool turret with carrier plate A tool turret for machine tools has a turret housing and a turret head rotatably mounted in the turret housing about a rotary axis and lockable in selected angular settings relative to the turret housing. A carriage supports the turret housing and guides ... | 02/24/1998 |
| 4523359 | Machine with an intermittently rotating table for the preformance of work operations A machine has an intermittently rotating table for holding parts to be worked on or assembled. Operating units (20, 21, 25) are actuable either simultaneously for all units or groups of units, or independently of one another. The operating units can be mo... | 06/18/1985 |
