| All Patents in class 33/772 |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 480,607 | Aug. 09, 1892 | P. McCallum | Circumference Indicator and Tire Gage | test indicator holders |
| 3,307,265 | Mar. 07, 1967 | E.J. Williams, F.P. Jenks | Distance measuring by friction wheel instruments | |
| 3,378,929 | Apr. 23, 1968 | E.J. Williams, C.E. Deardorff | Measuring device | |
| 3,724,082 | Apr. 03, 1973 | I.H. Culver | Flexure mounting for friction-wheel measurement device | |
| 3,740,856 | Jun. 26, 1973 | I.H. Culver | Flexure mounting for friction wheel measuring devices | |
| 3,771,228 | Nov. 13, 1973 | I.H. Culver | Friction wheel measuring device | |
