| All Patents in class 33/470 |
Patents 1 -
13
of 13
      |
| Number | Date | Patentee | Title | Type |
| 265,350 | Oct. 03, 1882 | C.D. Waters | Square & Bevel Instrument | bevel squares |
| 267,336 | Nov. 14, 1882 | A.H. Ege, C.D. Waters | Protractor | protractors |
| 289,463 | Dec. 04, 1883 | L.S. Starrett | Bevel | bevels |
| 295,100 | Mar. 11, 1884 | S.H. Bellows | Combined Bevel and T-Square | protractors |
| 318,526 | May 26, 1885 | F.H. Tidgewell, F. Waite | Taper Measuring Tool | measurement gauges |
| 318,984 | Jun. 02, 1885 | J.J. Hedges | Bevel for Draftsmen or Artificers | protractors |
| 323,009 | Jul. 28, 1885 | T.B. Williams | Bevel Protractor | protractors |
| 432,779 | Jul. 22, 1890 | J.P. Wells | Protractor | protractors |
| 460,421 | Sep. 29, 1891 | G.E. Allen | Combined Protractor & Bevel | protractors |
| 785,245 | Mar. 21, 1905 | E. Wiet | Combination Caliper and Protractor | calipers |
| 793,602 | Jun. 27, 1905 | V.L. Lenard, J. Murdock | Protractor | protractors |
| 1,295,180 | Feb. 25, 1919 | L. Lowenstein | Depth Angle-Gage | depth gauges |
| 1,606,192 | Nov. 09, 1926 | J.G. Sisson | Combined Depth Gauge and Protractor | depth gauges |
