All Patents of Type: measuring tools |
Patents 1 -
15
of 977
|
Number | Date | Patentee | Title | Type |
1,197X | Jan. 19, 1810 | E. Williams | Universal protractor | protractors |
GB-181,103,428 | Apr. 01, 1811 | T.W. Sturgeon | Improvements on a micrometer | micrometers |
2,279X | Mar. 14, 1815 | B. Otis | Perspective protractor | protractors |
3,794X | Dec. 24, 1823 | N. Goodwin | Rectangular protractor | protractors |
6,034X | Jun. 16, 1830 | I. Pool | Protractor | protractors |
7,695X | Aug. 01, 1833 | E. Brown | Facilitating protractor | protractors |
FR-7,518 | Sep. 07, 1848 | J.L. Palmer | Screw caliper and circular vernier (micrometer) | micrometers |
15,183 | Jun. 24, 1856 | C.R. Iliff | Drafting Protractors | protractors |
69,954 | Oct. 15, 1867 | J. Richards | Standard Gauges | measuring tools |
73,082 | Jan. 07, 1868 | S. Darling | Straight Edge | graduated rules |
110,460 | Dec. 27, 1870 | J.E. Ladd, H.F. Henderson | Gage for Turning Clock Work | clockmaker |
115,438 | May 30, 1871 | W.F. Cornell | Surface Gage | surface gages |
141,915 | Aug. 19, 1873 | A. Bónnaz | Micrometer Gage | micrometers |
161,392 | Mar. 30, 1875 | A.H. Dodd | Protractor | protractors |
165,519 | Jul. 13, 1875 | A. Swasey | Protractor | protractors |