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All Patents of Type: protractors
Patents 1 - 15 of 52
First set of recordsNext set of recordsLast set of records
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
161,392Mar. 30, 1875A.H. DoddProtractorprotractors
165,519Jul. 13, 1875A. SwaseyProtractorprotractors
199,425Jan. 22, 1878E. EricsonCentering Square & Protractorprotractors
267,336Nov. 14, 1882A.H. Ege, C.D. WatersProtractorprotractors
285,907Oct. 02, 1883P. KennellyProtractorprotractors
323,009Jul. 28, 1885T.B. WilliamsBevel Protractorprotractors
330,799Nov. 17, 1885G.B. OrendorffProtractorprotractors
339,682Apr. 13, 1886A. NilsenSquare and protractor for builders' usecarpenter squares
346,836Aug. 03, 1886G. AlmorthProtractorprotractors
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