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All Patents of Type: measuring tools
Patents 1 - 15 of 555
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NumberDatePatenteeTitleType
1,197XJan. 19, 1810E. WilliamsUniversal protractorprotractors
GB-181,103,428Apr. 01, 1811T.W. SturgeonImprovements on a micrometermicrometers
2,279XMar. 14, 1815B. OtisPerspective protractorprotractors
3,794XDec. 24, 1823N. GoodwinRectangular protractorprotractors
6,034XJun. 16, 1830I. PoolProtractorprotractors
7,695XAug. 01, 1833E. BrownFacilitating protractorprotractors
FR-7,518Sep. 07, 1848J.L. PalmerScrew caliper and circular vernier (micrometer)micrometers
15,183Jun. 24, 1856C.R. IliffDrafting Protractorsprotractors
69,954Oct. 15, 1867J. RichardsStandard Gaugesmeasuring tools
73,082Jan. 07, 1868S. DarlingStraight Edgegraduated rules
141,915Aug. 19, 1873A. BónnazMicrometer Gagemicrometers
161,392Mar. 30, 1875A.H. DoddProtractorprotractors
165,519Jul. 13, 1875A. SwaseyProtractorprotractors
199,425Jan. 22, 1878E. EricsonCentering Square & Protractorprotractors
202,866Apr. 23, 1878G.M. PrattMicrometer Gagemicrometers
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