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Patents for Chs. Houghton
Patents 1 - 3 of 3
First set of recordsLast set of records
NumberDatePatenteeTitleType
RE9,138Apr. 06, 1880O.R. ChaplinCombined Square and Bevelbevel squares
RE9,183May 04, 1880O.R. ChaplinCombined Square and Bevelbevel squares
307,413Oct. 28, 1884H.A. RueterWrenchwrenches
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