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Patents for Thomas H. Hutchins
Patents 1 - 5 of 5
First set of recordsLast set of records
NumberDatePatenteeTitleType
72,099Dec. 10, 1867D.Y. SmithImprovement in Auger-Handlesauger handles
164,953Jun. 29, 1875F. WilligImprovement in Expansible Bitsadjustable drill bits
264,107Sep. 12, 1882W. SandifordRatchet-drillhand drills
267,462Nov. 14, 1882W. SandifordRatchet-drillhand drills
292,973Feb. 05, 1884J. WinterbothamHoop-pole-splitting machinehoop making machines
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