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All Patents in class 148
Patents 1 - 15 of 37
First set of recordsNext set of recordsLast set of records
9,159Jul. 27, 1852B.C. LeavittImprovement in Compounds for Uniting Steel and Irontool making machines
12,691Apr. 10, 1855B.T. NorrisMachine for mortising blindsmortising machines
18,327Oct. 06, 1857S. DarlingManufacture of Metallic Squarestry squares
24,429Jun. 14, 1859J. JohnsonImprovement in Compositions for Cementing Irontool making machines
24,604Jun. 28, 1859E.G. PomeroyImprovement in Protecting Iron from Oxidationtool making machines
33,315Sep. 17, 1861E.B. WilsonMethod of Annealing and Swaging Castingstool making machines
34,095Jan. 07, 1862J.C. Stock, J.E. EmersonImproved process for making steel
52,450Feb. 06, 1866J. RussellProcess of Hardening Filesfiles
60,762Jan. 01, 1867C. ManningImprovement in tempering steel springs
63,487Apr. 02, 1867H. DisstonImproved Mode of Manufacturing Saw Bladestool making machines
67,734Aug. 13, 1867H. DisstonImprovement in Hardening and Straightening Steel Bladestool making machines
RE2,869Feb. 18, 1868S. DarlingImprovement in the Manufacture of Metallic Squarestry squares
77,111Apr. 21, 1868T. ShawImproved Mode of Surfacing Sheet Iron and Metal Platedtool making machines
82,607Sep. 29, 1868F.C. CurieImprovement in the Manufacture of Axes, Hammers, etc.axes
86,286Jan. 26, 1869H. DisstonImprovement in Device for Simultaneously Hardening and Straightening Circular-Saw Bladestool making machines
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