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Patents for Oley C. Hanson
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
235,233Dec. 07, 1880O.C. HansonShingle-sawing machineshingle machines
289,094Nov. 27, 1883O.C. HansonShingle-sawing machineshingle machines
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