| All Patents in class 33/558.1 |
Patents 1 -
10
of 35
      |
| Picture | Number | Date | Patentee | Title |
 | 7,689 | Oct. 01, 1850 | W.W. Smith | Spring Calipers |
 | 32,410 | May 28, 1861 | J.H. Call | Calipers |
 | 61,799 | Feb. 05, 1867 | H.A. Boardman | Improvement in Calipers |
 | 99,698 | Feb. 08, 1870 | G.W. Hadley, T.C. Page | Improvement in Calipers |
 | 110,657 | Jan. 03, 1871 | W.P. Hopkins | Improvement in Calipers |
 | 164,209 | Jun. 08, 1875 | J.H. Potts | Improvement in Adjustable Mechanisms for Dividers, Compasses and Calipers |
 | 228,958 | Jun. 15, 1880 | W.H. Warren | Calipers and Dividers |
 | 229,619 | Jul. 06, 1880 | J.D. Litle | Dividing-Compass |
 | 275,403 | Apr. 10, 1883 | J. Neimeyer | Compass |
 | 288,961 | Nov. 20, 1883 | O.D. Warfield | Calipers |
