| All Patents in class 33/535 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 70,547 | Nov. 05, 1867 | J. Graham | Bevel & Try Square |
 | 1,852,760 | Apr. 05, 1932 | J.G. Sisson | Cylinder Gauge |
| | 1,965,131 | Jul. 03, 1934 | R.J. Simpson | Alignment Gauge |
 | 2,427,152 | Sep. 09, 1947 | W.F. Moore | Gage to test the perpendicularity of the face of a workpiece to its axis |
| | 2,969,597 | Jan. 31, 1961 | W.J. Croshier | Squareness Gage |
 | 3,688,412 | Sep. 05, 1972 | W.E. Keener | Square Gage |
| | 4,413,417 | Nov. 08, 1983 | J.R. Esposito | Adjustable Angle Plate |
 | 5,131,161 | Jul. 21, 1992 | G. Drag | Guide Post and Master Cylinder Squareness Gage |
