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Hawkeye Wrench Company (Marshalltown, IA)
Article on the Hawkeye Wrench from The Metal Worker of March 12, 1904.
Likely formed ca. 1903 to produce a patented wrench by Charles Benesh (ND) - Patent #720,554 - Combined Wrench and Thread Cutter.
1907 "Hawkeye" Trademark #59,134