| All Patents in class 33/25.1 |
Patents 1 -
8
of 8
      |
| Picture | Number | Date | Patentee | Title |
 | 17,647 | Jun. 23, 1857 | C. Thurber | Calligraph |
 | 30,777 | Nov. 27, 1860 | C. Thurber | Caligraphy |
| | 364,043 | May 31, 1887 | C.S. Riché | Pantograph |
 | 2,274,543 | Feb. 24, 1942 | I.J. Gruenberg | Trimming mechanism for grinder wheels |
| | 2,452,509 | Oct. 26, 1948 | J.R. Moore, F.C. Victory | Wheel Truing Device |
| | 2,555,852 | Jun. 05, 1951 | F.E. Hawley | Wheel Dressing Means |
| | 2,627,658 | Feb. 10, 1953 | E.T. Green | Engraving Machine |
| | 5,616,917 | Apr. 01, 1997 | Y. Dai | Device for Measuring an Angle Between Pivotally-Connected Members |
