Luther Grinder Manufacturing Co.
A 1912 ad for the pedal-powered Luther Shop Tool Grinder showed some of its 16 attachments, a jig saw, lathe and saw, and a drill. In 1930, "The Luther Grinder Manufacturing Company has been purchased and reorganized by a group of Milwaukeeans, who incorporated the concern as Luther Grinder and Tool company, for $100,000."
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