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Inventor
HEUMANN OSKAR
2 patents
Patents
2 patents
US4152806A
May 8, 1979
Toothbrush
BLENDAX WERKE SCHNEIDER CO
18 citations
69
US4149293A
Apr 17, 1979
Adjustable bristle toothbrush
BLENDAX WERKE SCHNEIDER CO
6 citations
58