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Motor tracking control system
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Patent number 6,548,977
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Issue date Apr 15, 2003
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Seiberco Incorporated
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Hung D. Vu
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Sensor motor
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Patent number 5,329,195
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Issue date Jul 12, 1994
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Seiberco Incorporated
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Ralph W. Horber
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Magnetically assisted stepping motor
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Patent number 4,827,164
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Issue date May 2, 1989
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Pacific Scientific Company
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Ralph W. Horber
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Magnetically assisted stepping motor
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Patent number 4,712,028
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Issue date Dec 8, 1987
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SIGMA Instruments, Inc.
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Ralph W. Horber
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Polyphase DC motor with sensor poles
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Patent number 4,687,961
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Issue date Aug 18, 1987
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Seiberco Incorporated
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Ralph W. Horber
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H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER