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Electromagnetic seismic vibrator architecture
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Patent number 8,995,232
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Issue date Mar 31, 2015
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Board of Regents of the University of Texas System
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Raymond C. Zowarka
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
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Staged opening switch
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Patent number 4,859,819
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Issue date Aug 22, 1989
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Board of Regents, The University of Texas System
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William F. Weldon
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H01 - BASIC ELECTRIC ELEMENTS
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Welding fixture
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Patent number 4,656,328
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Issue date Apr 7, 1987
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Parker Kinetic Designs, Inc.
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James M. Weldon
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR