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Patents for Henry E. Eberhardt
Patents 1 - 10 of 18
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PictureNumberDatePatenteeTitle
308,347Nov. 25, 1884U. Eberhardt, H.E. EberhardtLathe friction-brake
321,196Jun. 30, 1885U. Eberhardt, H.E. EberhardtDrilling-Machine
  400,645Apr. 02, 1889H.E. Eberhardt, U. EberhardtAutomatic Machine for Cutting Rack Teeth
  407,339Jul. 23, 1889H.E. Eberhardt, U. EberhardtDrilling Machine
433,458Aug. 05, 1890U. Eberhardt, H.E. EberhardtMilling-cutter
461,952Oct. 27, 1891U. Eberhardt, H.E. Eberhardt, U. Eberhardt, Jr.Gear-cutting or milling-machine
496,511May 02, 1893U. Eberhardt, F.L. Eberhardt, H.E. EberhardtRotary cutter for making similar teeth
  510,121Dec. 05, 1893U. Eberhardt, H.E. Eberhardt, F.L. EberhardtGear-cutting machine
510,122Dec. 05, 1893U. Eberhardt, H.E. Eberhardt, F.L. EberhardtGear-cutting and hobbing machine
515,906Mar. 06, 1894U. Eberhardt, H.E. EberhardtMultiplex gear-cutter
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