| All Patents in class 33/426 |
Patents 1 -
10
of 33
      |
| Picture | Number | Date | Patentee | Title |
 | 115,318 | May 30, 1871 | E.A. Hickman | Improvement in Apparatus for Illustrating Trigonometry |
 | 307,787 | Nov. 11, 1884 | H.W. Merrill | Combination Try Square and Bevel gage |
 | 315,388 | Apr. 07, 1885 | C.D. Cowgill | Plotter For Tinners' Use |
 | 330,799 | Nov. 17, 1885 | G.B. Orendorff | Protractor |
 | 376,430 | Jan. 17, 1888 | S. Darling | Protractor |
 | 407,285 | Jul. 16, 1889 | C. Ensminger | Combined Square, Level, Protractor, &c. |
 | 523,733 | Jul. 31, 1894 | E.L. Samuelson | Adjustable Triangle |
 | 527,035 | Oct. 02, 1894 | G.G. Boswell | Bevel Attachment for Framing Square |
 | 527,968 | Oct. 23, 1894 | J.J. Brown, P. Grabler | Square |
 | 590,215 | Sep. 21, 1897 | S.G. Edwards | Square |
