| All Patents in class 33/501.4 |
Patents 1 -
10
of 32
      |
| Picture | Number | Date | Patentee | Title |
 | 211,975 | Feb. 04, 1879 | G.W. Dickinson | Micrometer Screw Gage |
 | 527,651 | Oct. 16, 1894 | J. Bath | Calipers |
 | 675,875 | Jun. 04, 1901 | F. Ullmer | Micrometer |
 | 903,484 | Nov. 10, 1908 | S. Kenley, A.S. Lane | Measuring Instrument |
 | 1,257,483 | Feb. 26, 1918 | K.J. Almfelt, A. Hart | Measuring Indicator or Gauge |
 | 1,507,272 | Sep. 02, 1924 | E. Buckingham | Internal Expansion Gauge |
 | 1,561,630 | Nov. 17, 1925 | R.A. Wilson | Micrometer Calipers |
 | 1,631,019 | May 31, 1927 | P.J. Darlington | Micrometer Calipers |
 | 1,652,854 | Dec. 13, 1927 | P.J. Darlington | Micrometer Caliper |
| | 1,664,583 | Apr. 03, 1928 | E.O. Wheelock | Snap Gage |
