Brushware – Powered – Electric toothbrush
Patent
1991-12-26
1999-06-22
Douglas, Alan P.
Brushware
Powered
Electric toothbrush
D4109, 0402
Patent
active
D04113659
REFERENCES:
patent: D172862 (1954-08-01), Brennan
patent: D196631 (1963-10-01), Bredon
patent: D315831 (1991-04-01), Kawano
patent: 1417082 (1922-05-01), Mc Namara
patent: 2379049 (1945-06-01), Tompkins
Bauske Valerie D.
Bauske, Sr. Fred R.
Douglas Alan P.
Tabor Lavone D.
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