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Patents Granted on 1872-01-23
Patents 1 - 8 of 8
First set of recordsLast set of records
NumberDatePatenteeTitleType
122,905Jan. 23, 1872A. O'DellImprovement in Hand Screws
122,916Jan. 23, 1872R.S. SanbornImprovement in Rotating Wrenchesratchet wrenches
122,920Jan. 23, 1872J.P. SimonsImprovement in Expanding Mandrelsmandrels and arbors
122,921Jan. 23, 1872N.P. StevensImprovement in Machines for Facing the Ends of Tubes and Hollow Cylinderspipe deburring machines
122,929Jan. 23, 1872S.K. WilseyImprovement in machines for filing sawssaw sharpening machines
123,040Jan. 23, 1872P. NicholsImprovement in Wrenchesnut wrenches
123,048Jan. 23, 1872J.H. RiceImprovement in shingle-machinesshingle machines
123,058Jan. 23, 1872T. SullivanScythe-snath lathewood lathes
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