| All Patents in class 33/415 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 74,297 | Feb. 11, 1868 | N.W. Burnett | Improvement in Pattern-Square | carpenter squares |
| 94,867 | Sep. 14, 1869 | H.N. Burr | Combination Square | bevel squares |
| 183,222 | Oct. 10, 1876 | T. Simonson | Improvement in Stair-Builders' Tools | carpenter |
| 189,737 | Apr. 17, 1877 | C.B. Hopkins | Improvement in Shades for Try-Squares | try squares |
| 269,719 | Dec. 26, 1882 | H.C. Root | Stairbuilders' Layout Devices | carpenter |
| 308,145 | Nov. 18, 1884 | W.B. Edwards | Try-Square | try squares |
| 312,743 | Feb. 24, 1885 | B.B. Merrill | Combined Square, Bevel and Level | squares |
| 386,651 | Jul. 24, 1888 | C.F. Nichols | Attachment for Squares | squares |
| 569,963 | Oct. 20, 1896 | O. Engman | Combined square, level, and T-square | combination tools |
| 771,264 | Oct. 04, 1904 | J.J. Nolan | Flour Mill Spout Beveling Tool | bevels |
| 772,861 | Oct. 18, 1904 | A.W. Benskin | Try Square | bevels |
| 802,674 | Oct. 24, 1905 | A. Anderson | Protractor | protractors |
| 1,001,229 | Aug. 22, 1911 | J.W. Hallard, W.H. Stuart | Combination Square and Bevel | bevels |
