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All Patents of Type: indicating calipers
Patents 1 - 15 of 552
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NumberDatePatenteeTitleType
1,197XJan. 19, 1810E. WilliamsUniversal protractorprotractors
2,279XMar. 14, 1815B. OtisPerspective protractorprotractors
3,794XDec. 24, 1823N. GoodwinRectangular protractorprotractors
6,034XJun. 16, 1830I. PoolProtractorprotractors
7,695XAug. 01, 1833E. BrownFacilitating protractorprotractors
15,183Jun. 24, 1856C.R. IliffDrafting Protractorsprotractors
66,239Jul. 02, 1867I.A. HurdImproved Depth-Gaugemicrometer depth gages
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
211,975Feb. 04, 1879G.W. DickinsonMicrometer Screw Gagemicrometers
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