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All Patents in class 408/218
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
5,103May 08, 1847P.W. GatesScrew Cutting Dietaps and dies
166,318Aug. 03, 1875J.E. SweetScrew Tapstaps and dies
216,023Jun. 03, 1879R.T. CraneImprovement in Boring and Reaming Toolstapered reamers
279,360Jun. 12, 1883J.W. DouglasCombined Drill or Reamer, Tap and Sockettaps and dies
588,056Aug. 10, 1897F.G. EcholsScrew Cutting Tool
1,613,577Jan. 04, 1927J.C. FletcherDie Cutting Machine
1,953,528Apr. 03, 1934R.R. Finn, E.T. ByssheChaserthread chasers
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