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All Patents in class 33/385
Patents 1 - 15 of 25
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NumberDatePatenteeTitleType
17,870Jul. 28, 1857C. ColeAdjustment Applied to Pendulum Levelslevel adjustments
36,906Nov. 11, 1862T.N. HosmerImprovement in Spirit-Levelslevel adjustments
71,279Nov. 26, 1867P. CliffordImprovement in Adjustable Spirit Levelsinclinometers
75,534Mar. 17, 1868L.L. DavisImprovement in Adjustable Spirit Levelslevels
82,769Oct. 06, 1868J.A. TrautImprovement in Adjusting Spirit Levelslevels
114,027Apr. 25, 1871F.B. Abel, J. MorssImprovement in Adjustable Spirit Levelslevels
121,088Nov. 21, 1871L.L. DavisImprovement in Spirit Levelswooden levels
178,354Jun. 06, 1876M. WilcoxImprovement in Spirit Levelslevels
201,276Mar. 12, 1878J. MorssImprovement in Spirit Level and Plumbwooden levels
297,574Apr. 29, 1884L.L. DavisSpirit Levelmetallic levels
372,921Nov. 08, 1887C.B. LongSpirit Levelmachinist levels
544,587Aug. 13, 1895W. MoorePlumb and Levellevels
565,096Aug. 04, 1896J.A. TrautApparatus for Adjusting Spirit Levelslevels
565,097Aug. 04, 1896J.A. TrautLevelmetallic levels
778,130Dec. 20, 1904D.A. James Eclipse Levellevels
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