Tooth brush head

Details Tooth brush head Tooth brush head

2000-04-10

2000-12-05

Douglas, Alan P.

Brushware

Toothbrush or handle therefor

Asymmetrical in top plan view

0402

Patent

active

D04345657

REFERENCES:
patent: 164353 (1875-06-01), Wayne
patent: D329946 (1992-10-01), Curtis et al.
patent: D370564 (1996-06-01), Moskovich
patent: D403510 (1999-01-01), Menke et al.
patent: 1753290 (1930-04-01), Graves
patent: 2168964 (1939-08-01), Strasser
patent: 2618801 (1952-11-01), Hibbs
patent: 2819482 (1958-01-01), Applegate
patent: 3722020 (1973-03-01), Hills
patent: 3941424 (1976-03-01), Balamuth et al.
patent: 5335389 (1994-08-01), Curtis et al.
patent: 5570487 (1996-11-01), Schneider

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