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Patents for John McGrew
Patents 1 - 3 of 3
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PictureNumberDatePatenteeTitle
133,469Nov. 26, 1872J. McGrewImprovement in stave-jointers
134,297Dec. 24, 1872J. McGrewImprovement in machines for sawing veneers
  139,594Jun. 03, 1873J. McGrewImprovement in machines for cutting hoop-locks
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