Brushware – Powered – Electric toothbrush
Patent
1997-04-24
1998-03-03
Douglas, Alan P.
Brushware
Powered
Electric toothbrush
D4108, 0402
Patent
active
D03913988
REFERENCES:
patent: 3187360 (1965-06-01), Spohr
patent: 4476604 (1984-10-01), White et al.
patent: 4630326 (1986-12-01), Stevens
patent: 5100252 (1992-03-01), Podolsky
Douglas Alan P.
Tabor Lavone D.
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