Sketch For Handle-less Toothbrush (USA)
Joseph Friedman’s best-known invention is the flexible straw, but the range of his inventive activities encompassed writing implements, improvements to engines, and objects for personal care, including this sketch for a handle-less tooth brush. Friedman frequently sketched on loose scraps of paper—he was especially fond of envelopes—working out ideas and solving problems, as here.
It is credited
Joseph B. Friedman Papers, Archives Center, National Museum of American History, 2001.3031.
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Its dimensions are
H x W (drawing): 19.7 x 12.5 cm (7 3/4 x 4 15/16 in.)
This object was previously on display as a part of the exhibition Tools: Extending Our Reach.