| All Patents in class 33/644 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 181,809 | Sep. 05, 1876 | R.D. Williams | Diameter Gage |
 | 610,021 | Aug. 30, 1898 | C.V. Bogart | Centering Gage |
 | 715,445 | Dec. 09, 1902 | I.A. White | Centering Gage |
| | 966,500 | Aug. 09, 1910 | G.F. Wegner | Combined Holder and Centering Tool |
 | 1,262,434 | Apr. 09, 1918 | W.E. Beeck | Scriber Attachment |
 | 1,395,087 | Oct. 25, 1921 | H.O. Brion | Center-testing device |
| | 1,563,574 | Dec. 01, 1925 | J. Jensen | Hollow Punch |
 | 2,125,682 | Aug. 02, 1938 | J. Meluzin | Lathe Hand Gauge |
| | 3,985,462 | Oct. 12, 1976 | T.P. Didato | V Block Center Finder |
| | 4,890,421 | Jan. 02, 1990 | K.S. Barney, W.R. Moore, Jr. | Automatic Measurement System |
