Brushware – Powered – Electric toothbrush
Patent
1999-08-25
2000-11-21
Douglas, Alan P.
Brushware
Powered
Electric toothbrush
D4111, 0402
Patent
active
D04338138
REFERENCES:
patent: D144163 (1946-03-01), Dolnick
patent: D361433 (1995-08-01), Yang
patent: D388252 (1997-12-01), Stutzer et al.
patent: D388958 (1998-01-01), Hartwein
patent: D397872 (1998-09-01), Moskovich et al.
patent: 4619009 (1986-10-01), Rosenstatter
patent: 5054149 (1991-10-01), Si-Hoe et al.
Figur Bernd
Stutzer Franz Alban
Douglas Alan P.
Rowenta-Werke GmbH
Tabor Lavone
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