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Vacuum cleaner
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Patent number 7,346,957
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Issue date Mar 25, 2008
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Matsushita Electric Industrial
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Hiroshi Nakamoto
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Airflow system for bagless vacuum cleaner
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Patent number 7,222,392
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Issue date May 29, 2007
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Panasonic Corporation of North America
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Michael J. McCormick
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Vacuum cleaner
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Patent number 6,684,451
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Issue date Feb 3, 2004
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Matsushita Electric Industrial Co., Ltd.
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Tomonori Kato
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
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Vacuum cleaner
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Patent number 6,345,411
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Issue date Feb 12, 2002
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Matsushita Electric Industrial Co., Ltd.
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Tomonori Kato
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A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...