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Patents for John M. Ritter
Patents 1 - 6 of 6
First set of recordsLast set of records
NumberDatePatenteeTitleType
538,119Apr. 23, 1895J.B. OlneyBilliard Cue Cutter
556,237Mar. 10, 1896I.F. AllmanVapor Engine
631,249Aug. 15, 1899W.F. FolmerMagazine Plate Holderfilm and plate holders
760,245May 17, 1904H. PlanteCombined Butt Gage and Bead Planebutt gauges
762,035Jun. 07, 1904W.F. FolmerMagazine Film Holderfilm and plate holders
867,081Sep. 24, 1907J.J. RobinsonGagecircular saw accessories
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