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| Number | Title | Issue Date |
| 6392378 | Method for operating and controlling hysteresis motors In a method of operating and controlling hysteresis motors energized by a three-phase power supply and individually monitored by an operating monitoring system, whereby the effective power output of the individual motors is determined and the three-phase ... | 05/21/2002 |
| 5758969 | Instrument for measuring the energy of optical radiation particularly laser radiation In an instrument for measuring the energy of optical radiation, particularly laser radiation, a number of radiation absorbing plate-like foraminous elements are disposed in a tubular housing such that the radiation entering at one end of the housing is su... | 06/02/1998 |
| 5710788 | Optically stable laser resonator In an optically stable laser resonator which includes at one end a fully reflective mirror, a partially reflective mirror serving as an uncoupling window at the other end and a pair of spherical optical mirrors one being diverging and the other being conv... | 01/20/1998 |
| 5681395 | Method for the removal of a surface layer by a laser beam In a method for uniformly removing layers from a coated surface, a laser beam is used for scanning the surface along parallel scanning lines wherein the laser beam has a surface illuminating cross-section with a central area defined between parallel lines... | 10/28/1997 |
