| All Patents in class 33/429 |
Patents 1 -
15
of 44
      |
| Number | Date | Patentee | Title | Type |
| 9,089 | Jul. 06, 1852 | N. Ames | Center Square for Finding the Center of a CIrcle | center squares |
| 13,127 | Jun. 26, 1855 | C.J. Ackerman, J.S. Halstead | Try Square and Bevel | squares |
| 22,585 | Jan. 11, 1859 | W. Ripley | Framing-Square | squares |
| 59,721 | Nov. 13, 1866 | E.C. Kellogg | Machinists' Combination Tool | measurement gauges |
| 79,175 | Jun. 23, 1868 | W.S. Winterbottom | Combined Square and Mitre | try squares |
| 91,892 | Jun. 29, 1869 | C. Winterbottom | Try-Square | try squares |
| 95,495 | Oct. 05, 1869 | W.J. Linton | Improvement in Combined Try-Square, Caliper, &c. | squares |
| 190,519 | May 08, 1877 | C.H. Schrier | Square | squares |
| 280,398 | Jul. 03, 1883 | E. Prescott | Prescott's Patent Carpenter's Square Attachment | miter squares |
| 288,807 | Nov. 20, 1883 | R. Hodges | Try Square | try squares |
| 310,420 | Jan. 06, 1885 | A.J. Hellings | Combination Gage | measurement gauges |
| 312,548 | Feb. 17, 1885 | J.W. Atkinson | L-Shaped Level | levels |
| 313,197 | Mar. 03, 1885 | E.L. Gaylord | Mat Gage for Picture Frames | marking gauges |
| 331,047 | Nov. 24, 1885 | P.L. Fox | Combined Square and Miter | miter squares |
| 332,011 | Dec. 08, 1885 | W.F. Seargeant | Clapboard gauge | squares |
