Rotational toothbrush

A toothbrush which head can be rotated to form different angle with the handle. This action of rotation can be done while brushing the teeth, once the handle leaves out the slot at the head, the handle can be moved to another slot, the angle of the head and the handle is changed from 180 degree to 9...

Ausführliche Beschreibung

Bibliographische Detailangaben

1. Verfasser:	Wong, Hing Wing
Format:	Patent
Sprache:	eng
Online-Zugang:	Volltext bestellen
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