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United States Utility Patents
4,677,290 - 4,677,299

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NumberTitle
4,677,290 Method of aligning an optical fiber with a light emitter via directing light toward light emitter acting as a detector
4,677,291 Analysis of rotational eccentricity
4,677,292 Method of generating image scanning clock signals in an optical scanning device
4,677,293 Photoelectric measuring system
4,677,294 Self-calibrating radiation sensors and control for radiation sensors
4,677,295 Process for determining mass spectrum by time of flight and spectrometer carrying out this process
4,677,296 Apparatus and method for measuring lengths in a scanning particle microscope
4,677,297 Apparatus for obtaining an enlarged image of a portion of the field of view of an infra-red camera
4,677,298 Method of monitoring ink-water balance on a lithographic printing press
4,677,299 Multiple layer positron emission tomography camera



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