Toothbrush head insert

Details Toothbrush head insert Toothbrush head insert

1993-12-07

1995-05-02

Gandy, James M.

Brushware

Toothbrush or handle therefor

Attachment

Patent

active

D03578097

REFERENCES:
patent: 1800993 (1931-04-01), Funk
patent: 2225331 (1940-12-01), Campbell
patent: 2618003 (1952-11-01), Robey
patent: 4780924 (1988-11-01), Hansen et al.
patent: 4890349 (1990-01-01), Nitzsche
patent: 5224234 (1993-07-01), Aesenault

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