A - Human Necessities – 46 – B
Patent
A - Human Necessities
46
B
A46B 15/00 (2006.01) A46B 13/00 (2006.01)
Patent
CA 2124013
The present invention relates to a toothbrush with timer and signalling apparatus having interchangeable periodontal devices. The signalling apparatus is composed of both an audio and vibrating signalling device to alert the user when the preset time limit is achieved.
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