| All Patents in class 33/542 |
Patents 31 -
45
of 46
      |
| Number | Date | Patentee | Title | Type |
| 2,030,864 | Feb. 18, 1936 | H.C. Gielow | Inside Micrometer Centering Device | inside micrometers |
| 2,088,362 | Jul. 27, 1937 | R.G. Anderson, J.Y. Blazek | Measuring device | vehicle mechanic |
| 2,335,775 | Nov. 30, 1943 | L.H. Laughton | Gauge | special purpose gauges |
| 2,383,272 | Aug. 21, 1945 | E.V. Page | Deep Hole Indicating Appliance | measurement gauges |
| 2,400,440 | May 14, 1946 | H. Rudolph | Precision Measuring Instrument | measurement gauges |
| 2,432,384 | Dec. 09, 1947 | E.S. Cornell | Circular Size Gage | thickness gages |
| 2,587,099 | Feb. 26, 1952 | E.M. Boat, J.J. Bishop | Resilient Head for Dial Bore Gauges | |
| 2,592,409 | Apr. 08, 1952 | E. Frankland | Pilot gauge | measuring tools |
| 2,601,496 | Jun. 24, 1952 | E.M. Boat | Dial Bore Gauge | |
| 2,643,460 | Jun. 30, 1953 | E.C. Zirzow, W.P. Adair, H.W. Dietert | Hardness Testing Indicator | |
| 2,661,541 | Dec. 08, 1953 | J.H. Dulligan | Helically-Coiled Hole Gauge | measurement gauges |
| 2,881,529 | Apr. 14, 1959 | P.M. Roch | Internal Diameter Micrometer | micrometers |
| 3,197,877 | Aug. 03, 1965 | D.H. Aldeborgh | Adjustable Setting Master for Dial Depth Gages | |
| 3,238,626 | Mar. 08, 1966 | A.J. White | Reversible gage setting apparatus | |
| 6,044,571 | Apr. 04, 2000 | D.S. Strait | Bore Measurement Apparatus and Method | bore gages |
