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Patents for J. R. Hoffman & Co.
Patents 1 - 7 of 7
First set of recordsLast set of records
NumberDatePatenteeTitleType
92,191Jul. 06, 1869J.R. HoffmanImprovement in saw-millsband sawmills
110,236Dec. 20, 1870J.R. HoffmanImprovement in saw-millsband sawmills
176,531Apr. 25, 1876A.E. HoffmanImprovement in machines for edging lumbercircular ripsaws
192,917Jul. 10, 1877J.R. HoffmanImprovement in band-saw millsband sawmills
370,944Oct. 04, 1887A.E. HoffmanFeed mechanism for saw-mill carriagessawmill feed works
379,163Mar. 06, 1888A.E. HoffmanFeed mechanism for saw-mill carriagessawmill feed works
480,428Aug. 09, 1892A.E. HoffmanVeneer-sawveneer machines
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