Scientific Americar* 2G July 3, 1909. … Hy-Rib Roofs and Sidings Your Automatic Stropper for Gillette blades was re- ceived in good order and am so pleased with it that I would not take ten times the price for it now. R. C. McKibbon, Knowlton, Quebec, Can. The motion is automatic, no practice required, a child can use it. Sent postpaid…
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Internet Archive · Public domain (published before 1931). Free to use for anything.
