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All Patents of Type: levels
Patents 1 - 15 of 316
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NumberDatePatenteeTitleType
6,726XAug. 25, 1831J.E. EldredLevel and plumb instrumentlevels
8,631XFeb. 11, 1835J. EamesSurveyor's Theodolitesurveyor
956Oct. 03, 1838L. LewisBalance and Pendulum Level and Plumbpendulum levels
4,611Jul. 02, 1846A. GirardPlumb-Levellevels
7,263Apr. 09, 1850W.G. Ladd, Jr.Fluid Levelinclinometers
7,477Jul. 02, 1850J. LockeCollimating Levellevels
8,897Apr. 20, 1852F. WilbarImproved Reflecting Spirit Level and Squarelevels
9,722May 17, 1853T.A. ChandlerPendulum Levelinclinometers
9,867Jul. 19, 1853S.J. ShermanPocket Levellevels
11,596Aug. 29, 1854L. BrooksInclinometerinclinometers
11,841Oct. 24, 1854J. ShanklinSquare, Scale, Level, and Bevelsquares
12,384Feb. 13, 1855H.W. EvansSpirit Levelinclinometers
RE374Jul. 01, 1856S.J. ShermanPocket Levellevels
17,023Apr. 14, 1857T.A. ChandlerPendulum Level or Inclinometerinclinometers
17,870Jul. 28, 1857C. ColeAdjustment Applied to Pendulum Levelslevel adjustments
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