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Fluid shear coupling apparatus
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Patent number 4,779,323
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Issue date Oct 25, 1988
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Household Mfg., Inc.
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Brent J. Bloemendaal
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F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
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Exercise apparatus
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Patent number 4,741,529
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Issue date May 3, 1988
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Bio-Dynamic Innovations, Inc.
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Brent J. Bloemendaal
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A63 - SPORTS GAMES AMUSEMENTS
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Exercise device
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Patent number 4,645,199
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Issue date Feb 24, 1987
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Bio-Dynamic Innovations, Inc.
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Brent J. Bloemendaal
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A63 - SPORTS GAMES AMUSEMENTS