| All Patents in class 33/558.02 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 13,993 | Dec. 25, 1855 | H.M. Parkhurst | Proportional Dividers |
 | 252,410 | Jan. 17, 1882 | L.B. Woodruff | Calipers |
 | 345,978 | Jul. 20, 1886 | W.E. Lombard | Proportional Caliper |
 | 380,360 | Apr. 03, 1888 | J.G. Smith, J.C. Spencer | Combined Rule, Square, Bevel, Calipers, &c. |
 | 598,911 | Feb. 15, 1898 | F.H. De Tray | Dividers |
 | 631,987 | Aug. 29, 1899 | F.H. De Tray | Dividers |
 | 730,105 | Jun. 02, 1903 | C. Fosby | Proportional Dividers |
 | 753,221 | Mar. 01, 1904 | A. Basola | Proportional Dividers |
 | 1,033,634 | Jul. 23, 1912 | E.L. Stover, E.H. Stover | Spacing Compasses for Lettering |
