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All Patents in class 408/214
Patents 16 - 30 of 65
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NumberDatePatenteeTitleType
36,534Sep. 23, 1862N.C. SanfordImprovement in Augersauger bits
42,863May 24, 1864B. Merritt, Jr.Improvement in machines for boring angular holesdrilling and boring
55,144May 29, 1866H.T. MoodyCountersink for Boltscountersinks
60,207Dec. 04, 1866H.C. LewisImproved Countersink Bitcountersinks
61,208Jan. 15, 1867A.C. KassonImprovement in augersauger bits
RE2,513Mar. 19, 1867R. CookImprovement in Augersauger bits
79,012Jun. 16, 1868N.C. SanfordImprovement in Augersauger bits
81,069Aug. 18, 1868R. CookSpoon bit with lead screwspoon bits
86,293Jan. 26, 1869H.K. ForbisImprovement in mortising machinesmortising machines
88,760Apr. 06, 1869C. WhitehouseImprovement in bits and augersdrill bits
95,379Sep. 28, 1869T.M. RichardsonAuger with Detachable Tipauger bits
95,803Oct. 12, 1869W.A. IvesImprovement in Augerauger bits
95,846Oct. 12, 1869S.A. SmithImprovement in Combined Bit and Tapauger bits
RE4,156Oct. 18, 1870W.A. IvesImprovement in Augersauger bits
111,648Feb. 07, 1871W.A. IvesImprovement in Augersauger bits
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