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All Patents of Type: levels
Patents 1 - 15 of 174
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6,726XAug. 25, 1831J.E. EldredLevel and plumb instrumentlevels
8,631XFeb. 11, 1835J. EamesSurveyor's Theodolitesurveyor
4,611Jul. 02, 1846A. GirardPlumb-Levellevels
7,477Jul. 02, 1850J. LockeCollimating Levellevels
8,897Apr. 20, 1852F. WilbarImproved Reflecting Spirit Level and Squarelevels
9,867Jul. 19, 1853S.J. ShermanPocket Levellevels
11,841Oct. 24, 1854J. ShanklinSquare, Scale, Level, and Bevelsquares
RE374Jul. 01, 1856S.J. ShermanPocket Levellevels
20,337May 25, 1858T.L. Morse (Morss), H. DisstonLeveling Device Attached to Handsawscombination saws
XC-853Jul. 13, 1858A.N. ColeInstrument, called Cole's Gravitating Plumb and Level levels
25,446Sep. 13, 1859T.S. ScovilleSpirit-Levellevels
26,762Jan. 10, 1860S.D. HaileySurveyor's Levellevels
26,956Jan. 24, 1860J. StegerPocket-Levellevels
44,225Sep. 13, 1864H.S. ShepardsonImprovement in Spirit-Levelslevels
49,037Jul. 25, 1865B.G. MartinImprovement in Carpenters' Rulesrule accessories
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