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Patents for Edw. S. Hall
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
1,188,801Jun. 27, 1916J.C. McEwenAdjustable Ratchet Wrenchratchet wrenches
1,295,423Feb. 25, 1919C.C. Wheeler, H.L. BrownMeasuring Tool for Clothwheel-based measurers
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