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Tooth brusher
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Patent number 7,008,225
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Issue date Mar 7, 2006
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Ricoh Elemex Corporation
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Kazumasa Ito
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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-
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Powered toothbrush
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Patent number 5,339,476
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Issue date Aug 23, 1994
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Shun-Der Chang
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Fluid powered brush
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Patent number 5,153,962
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Issue date Oct 13, 1992
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Charles H. Ritter
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Water powered toothbrush
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Patent number 4,783,871
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Issue date Nov 15, 1988
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Joseph Rich
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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-
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Combination handle
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Patent number 4,534,340
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Issue date Aug 13, 1985
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Teledyne Industries, Inc.
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Ronald R. Kerr
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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-
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3927434
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Patent number 3,927,434
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Issue date Dec 23, 1975
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3909867
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Patent number 3,909,867
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Issue date Oct 7, 1975
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3605154
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Patent number 3,605,154
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Issue date Sep 20, 1971
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3553758
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Patent number 3,553,758
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Issue date Jan 12, 1971
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3509874
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Patent number 3,509,874
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Issue date May 5, 1970
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3440680
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Patent number 3,440,680
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Issue date Apr 29, 1969
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3046585
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Patent number 3,046,585
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Issue date Jul 31, 1962
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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3039123
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Patent number 3,039,123
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Issue date Jun 19, 1962
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2492966
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Patent number 2,492,966
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Issue date Jan 3, 1950
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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2285865
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Patent number 2,285,865
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Issue date Jun 9, 1942
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE