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Oral brush head
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Patent number D696021
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Issue date Dec 24, 2013
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CRA Labs, Inc.
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Kenneth J. Hegemann
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D04 - Brushware
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Oral brush head
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Patent number D696020
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Issue date Dec 24, 2013
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CRA Labs, Inc.
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Kenneth J. Hegemann
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D04 - Brushware
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-
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Oral brushing devices
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Patent number 7,849,549
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Issue date Dec 14, 2010
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CRA Labs, Inc.
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Kenneth J. Hegemann
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A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE
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Oral brush head
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Patent number D585648
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Issue date Feb 3, 2009
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CRA Labs, Inc.
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Kenneth J. Hegemann
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D04 - Brushware
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