| All Patents in class 33/560 |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 181,411 | Aug. 22, 1876 | J. Cleveland | Improvement in Frame-Squaring Tools | measuring rods |
| 207,308 | Aug. 20, 1878 | A. Schmitter | Calipers | measurement gauges |
| 642,750 | Feb. 06, 1900 | L.B. Nielsen | Combination Measuring Tool | surface gauges |
| 695,661 | Mar. 18, 1902 | A.K. Theibault | Caliper Gage | trammels |
| 750,204 | Jan. 19, 1904 | R.A. Lachmann | Gage | rule attachments |
| 1,003,626 | Sep. 19, 1911 | C.E. Malcolm | Measuring Pole | measuring rods |
| 1,426,878 | Aug. 22, 1922 | H. Koerke | Calipers | calipers |
| 2,643,459 | Jun. 30, 1953 | S.G. Snortland, B.E. Beers | Measuring Device for Pistons in Depth Engines | special purpose gauges |
| 3,115,711 | Dec. 31, 1963 | R.A. Plante | Area Comparison Gage | limit gages |
| 3,238,626 | Mar. 08, 1966 | A.J. White | Reversible gage setting apparatus | |
| 3,648,377 | Mar. 14, 1972 | F.W. Witzke | Sling Roundness Gage | special purpose gauges |
| 4,326,338 | Apr. 27, 1982 | R.A. Plante | Area Comparison Gage | limit gages |
