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Patents for Harry W. Hahn
Patents 1 - 4 of 4
First set of recordsLast set of records
PictureNumberDatePatenteeTitle
CA-57,203Aug. 25, 1897G. McEachrenWrench
599,252Feb. 15, 1898W.M. Powell, Jr.Pipe Tongs
  600,767Mar. 15, 1898J. BrandallRabbet Plane Fence
608,120Jul. 26, 1898W. HeffnerNut Wrench
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