| All Patents in class 33/495 |
Patents 1 -
10
of 23
      |
| Picture | Number | Date | Patentee | Title |
 | 65,532 | Jun. 11, 1867 | F. Flanders, S.E. Bickford | Improvement in Graduated Bevel Squares |
 | 71,953 | Dec. 10, 1867 | S.N. Batchelder | Improvement in Try Squares and Bevels |
 | 73,532 | Jan. 21, 1868 | W.O. Jones | Improvement in Combined Rule and Square |
 | 73,828 | Jan. 28, 1868 | H.L. Ogden | Improvement in Try Squares |
 | 79,062 | Jun. 23, 1868 | W.T. Fisher | Improvement in Bevel Squares |
 | 101,477 | Apr. 05, 1870 | J.A. Littlefield | Improvement in Combined Square, Protractor, Level, & c. |
 | 387,570 | Aug. 07, 1888 | J.A. Traut | Pocket Rule |
 | 418,493 | Dec. 31, 1889 | J.M. Snidow, J.W. Boughton | Combined File and Try Square |
 | 496,123 | Apr. 25, 1893 | W.L. Keuffel | Zig Zag Rule |
 | 532,658 | Jan. 15, 1895 | G.C. Gillespie | Folding Ruler |
