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Electric toothbrush
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Patent number 6,189,693
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Issue date Feb 20, 2001
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Dr. Johns Products, Ltd.
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Lawrence A. Blaustein
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Electric toothbrush
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Patent number 6,178,579
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Issue date Jan 30, 2001
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Dr. Johns Products, Ltd.
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Lawrence A. Blaustein
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
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Toothbrush
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Patent number D433814
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Issue date Nov 21, 2000
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Dr. Johns Products, Ltd.
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Lawrence A. Blaustein
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D04 - Brushware
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Electric toothbrush
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Patent number 6,000,083
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Issue date Dec 14, 1999
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Dr. Johns Products, Ltd.
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Lawrence A. Blaustein
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B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL