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Application filed by G R P Ges Fuer Rationelle PsycfiledCriticalG R P Ges Fuer Rationelle Psyc
Priority to DK4579ApriorityCriticalpatent/DK147274C/en
Publication of DK4579ApublicationCriticalpatent/DK4579A/en
Publication of DK147274BpublicationCriticalpatent/DK147274B/en
Application grantedgrantedCritical
Publication of DK147274CpublicationCriticalpatent/DK147274C/en
The toothbrush is ergonomically configured with a shaft 1 tapering conically away from the bristle head 2, while the bristle head makes an angle of around 25-35 degrees with the central axis of the shaft. In a bending region a, the shaft is conically narrowed in the direction toward the bristle head. The bristle field 6 at the front of the bristle head extends for less than half of the length of the bristle head.