| | ||
| Home| FAQ | Search:Advanced|Person|Company| Type|Class | Login | |
| Quick search: | ||
| All Patents in class 33/519 | |||||
      | |||||
| Number | Date | Patentee | Title | Type | |
| 80,649 | Aug. 04, 1868 | B.F. Merrill | Improvement in Gauges | special purpose gauges | |
| 2,494,152 | Jan. 10, 1950 | W.W. Ablett | Tool to Check Centrality and Alignment of Keyways in Shafts | measurement gauges | |
| 2,521,820 | Sep. 12, 1950 | L.B. Fuller, R.O. Beardsley | Optical Comparator for Testing Cams | comparators | |
| 2,807,091 | Sep. 24, 1957 | F.E. Michelson | Keyway Checkers | measurement gauges | |