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Optical position encoder
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Patent number 9,726,524
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Issue date Aug 8, 2017
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Raytheon Company
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Eric C. Fest
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Servo system and encoder
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Patent number 9,690,287
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Issue date Jun 27, 2017
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Kabushiki Kaisha Yaskawa Denki
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Yasuhiro Matsutani
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G05 - CONTROLLING REGULATING
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Motion tracking device
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Patent number 4,662,756
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Issue date May 5, 1987
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RCA Corporation
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Michael J. Duran
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G01 - MEASURING TESTING
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3922094
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Patent number 3,922,094
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Issue date Nov 25, 1975
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G01 - MEASURING TESTING
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3829222
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Patent number 3,829,222
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Issue date Aug 13, 1974
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G01 - MEASURING TESTING
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3805072
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Patent number 3,805,072
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Issue date Apr 16, 1974
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C03 - GLASS MINERAL OR SLAG WOOL
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3794477
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Patent number 3,794,477
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Issue date Feb 26, 1974
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G05 - CONTROLLING REGULATING
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3775617
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Patent number 3,775,617
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Issue date Nov 27, 1973
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G01 - MEASURING TESTING
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3764285
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Patent number 3,764,285
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Issue date Oct 9, 1973
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G05 - CONTROLLING REGULATING
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3503065
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Patent number 3,503,065
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Issue date Mar 24, 1970
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G05 - CONTROLLING REGULATING
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3423592
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Patent number 3,423,592
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Issue date Jan 21, 1969
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G01 - MEASURING TESTING
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3405257
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Patent number 3,405,257
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Issue date Oct 8, 1968
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR