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All Patents of Type: dividers
Patents 1 - 15 of 118
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NumberDatePatenteeTitleType
5,929Nov. 21, 1848N. Thorn, C. RieffelDividersdividers
7,257Apr. 09, 1850D.H. ChamberlainDivider or Compassdividers
13,993Dec. 25, 1855H.M. ParkhurstProportional Dividersdividers
21,435Sep. 07, 1858J.D. MoonCalipers and Dividerscalipers
30,009Sep. 11, 1860J.W. StrangeSpring Dividerscalipers
43,854Aug. 16, 1864C. JillsonCombination Calipers and Dividerscalipers
50,173Sep. 26, 1865S.A. ShurtleffImprovement in Dividersdividers
52,616Feb. 13, 1866U. SmithCombination Parallel Rule and Squarerules
67,360Jul. 30, 1867L. SheltersCaliper & Dividercalipers
70,840Nov. 12, 1867W.G. HillegassImprovement in Pencil-Holders for Compassesdividers
72,433Dec. 17, 1867O.E. WeatherheadDividerdividers
119,875Oct. 10, 1871C.M. NicholsDividerdividers
121,850Dec. 12, 1871A.A. CookDividerdividers
128,417Jun. 25, 1872R. NicholImprovement in Combined Rules and Dividersdividers
130,038Jul. 30, 1872T. HagertyImprovement in the Construction of Compassesdividers
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