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EP0527995A1
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Electric circuit for measuring the frequency of laser doppler signals
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Optical device for measuring the speed or the length of a moving surface using a measurement light beam emanating from a laser
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Optical device for measuring the speed or length of a moving surface using a laser beam
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Optical device, especially for measuring the speed of a moving surface by means of a measuring light beam from a laser
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WO9206389A1
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Optical device for measuring the speed or length of a moved surface
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Optical instrument
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METHOD FOR CONTINUOUS TOUCH-FREE MEASUREMENT OF PROFILES AND DEVICE FOR CARRYING OUT THE MEASURING METHOD
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