| All Patents in class 33/451 |
Patents 31 -
45
of 46
      |
| Number | Date | Patentee | Title | Type |
| 895,560 | Aug. 11, 1908 | C.E. Heinrich | Miter-Gage | bevel squares |
| 968,679 | Aug. 30, 1910 | E. Oehrle | Combination Tool | protractors |
| 989,625 | Apr. 18, 1911 | G.F. McKee | Combination Tool | squares |
| 997,551 | Jul. 11, 1911 | G.F. Hall | Compound Instrument | miter squares |
| 999,899 | Aug. 08, 1911 | W.H. Stanley | Combination Tool | rule attachments |
| 1,000,133 | Aug. 08, 1911 | J.T. Urbach | Square and Bevel | bevels |
| 1,006,121 | Oct. 17, 1911 | E. Oehrle | Combination Tool | protractors |
| 1,061,045 | May 06, 1913 | R. Campbell | Rule Attachment | rule accessories |
| 1,134,826 | Apr. 06, 1915 | O.A. Eckre | Combination Clapboard Gage, Square, and Level | clapboard markers |
| 1,210,370 | Dec. 26, 1916 | J. Dvorak | Combined Level and Square | levels |
| 1,315,644 | Sep. 09, 1919 | . | Hand Tool | |
| 1,406,262 | Feb. 14, 1922 | M.R. Kronert | Tool for Laying Out Keyways | special purpose gauges |
| 1,414,847 | May 02, 1922 | E. Wells | Tool | calipers |
| 1,665,504 | Apr. 10, 1928 | . | Leveling Square | |
| 1,754,035 | Apr. 08, 1930 | . | Combination Handsaw | |
