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Patents for Otto Risch
Patents 1 - 4 of 4
First set of recordsLast set of records
NumberDatePatenteeTitleType
245,752Aug. 16, 1881J. SiegleySiegley Combination Planecombination planes
257,982May 16, 1882J.A. SchmidtNippers For Opening Bottlespliers
266,042Oct. 17, 1882M. MerzDovetail Gagedovetail gauges
290,183Dec. 11, 1883G.F. HildenbrandFaucet-Hole Attachment For Barrelwrenches
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