A - Human Necessities – 46 – B
Patent
A - Human Necessities
46
B
15/85.4
A46B 13/02 (2006.01) A46B 7/10 (2006.01) A61C 17/26 (2006.01)
Patent
CA 1320798
ABSTRACT OF THE DISCLOSURE The conventional electric toothbrush includes a vibrating head or cylindrical brushes which rotate in one direction only. The toothbrush described herein includes a plurality of annular brushes which rotate in opposite directions to simulate the up and down brushing action of ordinary, manually operated toothbrushes.
614979
Dunsmuir George H.
Winiewski Gerald
LandOfFree
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