Ferodowill Mfg. Co. (St. Paul, MN) Sub Brands / Trade Names / Trademarks
- Diamond (Wrenches)
------Founded by Joseph Henry Ferodowill. The earliest mention of the company comes in The Blacksmith & Wheelwright Magazine of January, 1903. The company appears to exist until at least 1981 where Eugene Ferodowill is listed as President.