Brushing Up With His Invention (Aug, 1941)

Brushing Up With His Invention

DON LEVERIDGE, 22-year-old senior of the University of Chicago, demonstrates his revolving toothbrush, which uses a hand-operated crank as its power source. The young lady is using an ordinary toothbrush which, according to Don, is old-fashioned in the light of his invention. He has already talked 200 of his fellow students into using his type of brush, and has great hopes for marketing it nationally.

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1. Motorized Toothbrush Leaves Hands Free For Shaving (Oct, 1937)
2. When Your Invention Goes to Washington (Mar, 1936)
3. Water Succeeds Gasoline As New Invention Is Perfected (Dec, 1935)
4. PASTE NOW ATTACHED TO TOOTHBRUSH (Feb, 1932)
5. Lindy’s Invention Perfects the Mechanical Man (Sep, 1935)