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Patents for Leslie David Janell
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
  CA-101,064Sep. 18, 1906P.B. Clark, A.E. Stearns, L.D. Janell, S.J. GonyaMachine a Poinconnage et Rognage
  FR-376,238Aug. 03, 1907L.D. JanellPunching-Shearing Machine
  GB-190,702,953Aug. 22, 1907L.D. JanellImprovements in Punching and Shearing Machines
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