| All Patents in class 33/674 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 38,922 | Jun. 16, 1863 | J.A. Talpey | Centering device for lathes |
| | 115,337 | May 30, 1871 | E. McNiel | Improvement in Centering Machine |
| | 167,834 | Sep. 21, 1875 | M.A. Greenwood, Administratrix, M.T. Greenwood, (deceased, Estate of) | Centering Device |
 | 230,420 | Jul. 27, 1880 | M.W. Kahle | Combined Calipers & Scriber |
 | 230,421 | Jul. 27, 1880 | M.W. Kahle | Calipers & Centering Device |
 | 608,183 | Aug. 02, 1898 | G.W. Davis | Center Finding Register Calipers |
 | 762,553 | Jun. 14, 1904 | P.S. Palmer | Combination Calipers and Dividers |
 | 772,334 | Oct. 18, 1904 | J.J. Bornheimer | Calipers |
 | 970,817 | Sep. 20, 1910 | W.H. Harris | Calipers |
| | 1,006,660 | Oct. 24, 1911 | R.C. Keppie | Micrometer Calipers |
