| All Patents in class 33/816 |
Patents 31 -
42
of 42
      |
| Number | Date | Patentee | Title | Type |
| 1,763,941 | Jun. 17, 1930 | E.J. Witchger | Micrometer caliper | measurement gauges |
| 1,940,475 | Dec. 19, 1933 | O.A. Koebke, E.J. Witchger | Micrometer caliper | measurement gauges |
| 2,467,499 | Apr. 19, 1949 | R.H. Sachleber | Micrometer | micrometers |
| 2,620,567 | Dec. 09, 1952 | F.J. McClish | Micrometer | micrometers |
| 2,856,694 | Oct. 21, 1958 | E.E. Bianco | Micrometer Calipers, Micrometer Heads and the Like | micrometers |
| 2,871,571 | Feb. 03, 1959 | W.P. Metevia | Friction Thimble | micrometers |
| 2,963,792 | Dec. 13, 1960 | P.M. Roch | Micrometric Head | measurement gauges |
| 3,484,942 | Dec. 23, 1969 | R.H. Toubhans | Micrometer with Non-Backlash, Non-Rotating Lead Screw | micrometers |
| 3,514,865 | Jun. 02, 1970 | Y. Karahashi | Micrometer Having a Non-Rotating Spindle | micrometers |
| 3,810,310 | May 14, 1974 | P.A. Morgan | Micrometer Measuring Devices | micrometers |
| 4,168,575 | Sep. 25, 1979 | I. Sugizaki, M. Yamauchi | Constant Pressure Measuring Micrometer | micrometers |
| 5,596,813 | Jan. 28, 1997 | B.G. Nagy, E.E. Olson | Measuring instrument with diamond coated contacts | measurement gauges |
