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Patents for Henry R. Mathias
Patents 1 - 2 of 2
First set of recordsLast set of records
NumberDatePatenteeTitleType
267,010Nov. 07, 1882H.R. MathiasExcelsior-machineexcelsior machines
376,671Jan. 17, 1888H.R. MathiasSlidewaywoodworking machine material handling
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