Toothbrush with hourglass timer and holder

Details Toothbrush with hourglass timer and holder Toothbrush with hourglass timer and holder

1997-10-30

1999-02-16

Douglas, Alan P.

Brushware

Toothbrush or handle therefor

Combined with diverse article

0402

Patent

active

D04056132

REFERENCES:
patent: 4267588 (1981-05-01), Daniels
patent: 4817826 (1989-04-01), Judge
patent: 4927011 (1990-05-01), Wilkinson
patent: 5163566 (1992-11-01), Hempel
patent: 5528561 (1996-06-01), Castanis
patent: 5566823 (1996-10-01), Summers
patent: 5638840 (1997-06-01), Lee et al.

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