| All Patents in class 33/DIG16 |
Patents 1 -
8
of 8
      |
| Number | Date | Patentee | Title | Type |
| 60,315 | Dec. 04, 1866 | B. Worcester | Improvement in Scale Pencils | marking gauges |
| 336,834 | Feb. 23, 1886 | E.O. Boyle | Glass Cutting Gage | glazier |
| 386,651 | Jul. 24, 1888 | C.F. Nichols | Attachment for Squares | squares |
| 651,057 | Jun. 05, 1900 | A. Roberts | Steel Square | carpenter squares |
| 672,455 | Apr. 23, 1901 | M. Nicholls | Squares | carpenter squares |
| 795,160 | Jul. 18, 1905 | M. Nicholls | Rafter Attachment for Steel Squares | bevels |
| 814,157 | Mar. 06, 1906 | T.F. Norfolk | Attachment for Steel Squares | carpenter squares |
| 1,001,316 | Aug. 22, 1911 | F.E. Smith | Angle Gage for Squares | carpenter squares |
