Toothbrush having adjustable bristle head

Abstract From the Canadian patent

A toothbrush having a bristle supporting head pivotally mounted to a handle for pivotal movement of the head and bristles about a pivot axis substantially perpendicular to the axis of the handle to a plurality of positions to gain easy access to tooth surfaces at opposite sides of the mouth the, bristles extending in a direction mutually perpendicular to the axis of the handle and pivot axis, and the handle having an enlarged hollow end for storage therein of a bristle supporting head or the like and for supporting the toothbrush in an upright free standing position.