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Fluid flow control valve
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Patent number 5,087,018
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Issue date Feb 11, 1992
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Bissell Inc.
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Michael R. Blase
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Fluid flow control valve
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Patent number 4,854,544
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Issue date Aug 8, 1989
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Bissell, Inc.
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Michael R. Blase
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Vacuum cleaner bag attachment
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Patent number 4,249,280
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Issue date Feb 10, 1981
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Oreck Corp.
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Gordon W. Goodrich
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...