The first match was accidentally discovered in 1826 when John Walker scraped a stick with chemicals on the end against a stone floor.
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| Number | Title | Issue Date |
| 7950306 | Manipulator A manipulator, such as for use in medical procedures, is provided. The manipulator includes a body and a first actuator system connected to the body at a first attachment point and capable of moving the first attachment point with at least three degrees of freedom. ... | 05/31/2011 |
| 7892243 | Surgical manipulator The present invention provides a surgical manipulator which is capable of manipulating a surgical or medical tool in up to six degrees of freedom. The manipulator has a haptic interface and an associated position sensing system. A controller is provided that can be ... | 02/22/2011 |
| 7625383 | Surgical manipulator The present invention provides a surgical manipulator which capable of manipulating a surgical or medical tool in up to six degrees of freedom. The manipulator has a relatively lightweight, compact design as a result of the use of high force to mass ratio actuators.... | 12/01/2009 |