| All Patents in class 33/343 |
Patents 16 -
24
of 24
      |
| Number | Date | Patentee | Title | Type |
| 798,695 | Sep. 05, 1905 | E. Oehrle | Combination Square and Protractor | protractors |
| 953,863 | Apr. 05, 1910 | D.E. Shaw | Combination Attachment for Tools | bevels |
| 968,679 | Aug. 30, 1910 | E. Oehrle | Combination Tool | protractors |
| 980,362 | Jan. 03, 1911 | L.S. Starrett | Combined Square and Bevel Protractor | protractors |
| 1,003,517 | Sep. 19, 1911 | F. Scelea | Door-Jamb Setter | levels |
| 1,202,114 | Oct. 24, 1916 | L.S. Starrett | Combined Gage and Level | layout tools |
| 1,308,699 | Jul. 01, 1919 | W.L. Cusick | Combined Level, Plumb, and Gage | levels |
| 1,408,085 | Feb. 28, 1922 | A. Garratt, G. Barron, S. Garratt | Combination Gauging Tool | squares |
| 2,761,215 | Sep. 04, 1956 | L.A. Macklanburg | Squar-evel | levels |
