B66-532
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Item no.: 174156397949
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B66-532 LOT OF TWO SELF-ADJUSTING WRENCHES. Both examples of the parallelogram design. The first was patented in 1922 by Fredric Roberts and manufactured by the Hoe Corporation of Poughkeepsie; 14" version, clearly marked and very clean, noting that the end of the handle has been heated and twisted 90 degrees, presumably to give the user more leverage. The second was patented by John Boulieu in 1910 and manufactured by the Lake Superior Wrench Co. of Sault Ste Marie; early type marked "patent pending" and without the spring to close the jaws; 10". From the collection of Cecil Holmes. Good+ 100-200
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