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All Patents of Type: center drilling machines
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
376,838Jan. 24, 1888A. WhitneyDrilling Machinecenter drilling machines
390,108Sep. 25, 1888A. WhitneyCenter Drilling Machinecenter drilling machines
680,724Aug. 20, 1901W.W. Holmes, J. McCarthy, F.W. MussetterDuplex Centering Machinecenter drilling machines
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