| All Patents in class 33/821 |
Patents 16 -
28
of 28
      |
| Number | Date | Patentee | Title | Type |
| 1,432,664 | Oct. 17, 1922 | J. Brewer | Direct-Reading Micrometer | measurement gauges |
| 1,490,413 | Apr. 15, 1924 | B.H. Blood | Linear Measuring Machine | measuring calipers |
| 1,511,255 | Oct. 14, 1924 | J.E. Barker | Micrometer | micrometers |
| 1,562,653 | Nov. 24, 1925 | R.G. Nilson | Fraction Reading Micrometer | micrometers |
| 2,085,380 | Jun. 29, 1937 | E. Muller | Micrometer | micrometers |
| 2,193,939 | Mar. 19, 1940 | W.E. Sanford | Micrometer | micrometers |
| 2,488,319 | Nov. 15, 1949 | C.J. Noel | Micrometer Tool | micrometers |
| 2,565,787 | Aug. 28, 1951 | A.S. Tennant | Dividing Attachment for Lathes | metal lathe accessories and attachments |
| 2,614,331 | Oct. 21, 1952 | C.F. Sherwin | Micrometer | micrometers |
| 3,049,807 | Aug. 21, 1962 | G.G. Smeets | Calibrated Positioning Device | |
| 4,993,167 | Feb. 19, 1991 | D.L. Durfee, Jr. | Dressing Tool Gauge for Positioning Cutting Tools in Removable Head Type Dressers | measurement gauges |
| 5,353,516 | Oct. 11, 1994 | W.S. Dalton | Turbine Packing Ring Measuring Device | measurement gauges |
| 6,354,014 | Mar. 12, 2002 | S. Kudo, N. Yamakawa | Micrometer | micrometers |
