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All Patents in class 474/129
Patents 1 - 4 of 4
First set of recordsLast set of records
313,035Feb. 24, 1885W.G. VernonBelt-shifterbandsaws
371,480Oct. 11, 1887F.A. ShoemakerBelt-shifterindustrial machine pulleys and belt drive mechanisms
964,051Jul. 12, 1910H.A. PerkinsBelt shifter and tightenerwoodworking power transmission
2,499,273Feb. 28, 1950M. LeachBelt shifterbelt shifters
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