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All Patents of Type: machinist levels
Patents 1 - 11 of 11
First set of recordsLast set of records
31,987Apr. 09, 1861R.B. LightMachinist's Squaresquares
98,106Dec. 21, 1869J. PottsImprovement in combined square and calipersquares
D10,017May 29, 1877L.L. DavisDesign for Spirit Levelsmachinist levels
283,564Aug. 21, 1883B.B. ButtRight Angled Levelmachinist levels
304,601Sep. 02, 1884F.W. BoettcherCombined Square, Level and Trianglebevel squares
351,820Nov. 02, 1886M.P. WardTry Squaretry squares
369,547Sep. 06, 1887G. NicolescuCombined Try Square, Surface Gage, and Levelmachinist levels
372,921Nov. 08, 1887C.B. LongSpirit Levelmachinist levels
426,001Apr. 22, 1890H.W. EvansCombined Square, Level & Surface Gagesquares
582,517May 11, 1897S.H. BellowsShaft Levelmachinist levels
868,074Oct. 15, 1907E.E. ClarkShaft Liner and Levelerspecial purpose gauges
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