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All Patents in class 408/167
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
572,445Dec. 01, 1896B.W. PrenticeSectional expansion-tap
  2,432,855Dec. 16, 1947W.J. BlazekExpansion-type reamers and hones
  2,582,524Jan. 15, 1952J.Y. BlazekReamer and method of producing same
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