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Patents for Union Stone Co.
Patents 1 - 15 of 23
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NumberDatePatenteeTitleType
53,092Mar. 06, 1866S. SorelMaterial for making grinding wheels
100,944Mar. 15, 1870S. SorrelMaterial for making grinding wheels
100,945Mar. 15, 1870S. SorrelMaterial for making grinding wheels
102,218Apr. 26, 1870H. BrownImprovement in oil-stone holderssharpening jigs and fixtures
107,017Sep. 06, 1870J.S. ElliottImproved brick-machine
110,023Dec. 13, 1870J.S. ElliottImprovement in machines for mixing the materials to form artificial stone, &c.
110,102Dec. 13, 1870J.F. WoodImprovement in the manufacture of emery-wheels
111,921Feb. 21, 1871J.S. ElliottImprovement in machines for forming artificial stone
124,557Mar. 12, 1872J.S. Elliott, J.F. WoodImprovement in the manufacture of imitation marble
124,558Mar. 12, 1872J.S. Elliott, J.F. WoodImprovement in the manufacture of millstones
124,559Mar. 12, 1872J.S. Elliott, J.F. WoodImprovement in processes of repairing millstones
125,385Apr. 09, 1872J. Elliott, J.F. WoodImprovement in composition-stones for smut-machines
125,390Apr. 09, 1872J.A. HenshawImprovement in cements for artificial stones
126,041Apr. 23, 1872J.S. Elliott, J.F. WoodMethod of making stone for grinding wood-pulp
126,042Apr. 23, 1872J.S. Elliott, J.F. WoodImprovement in composition-stone frames for hot-air registers
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