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| All Patents in class 33/DIG.11 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 1,467,341 | Sep. 11, 1923 | E.g. Strong | Indicating Gauge | ||
 | 1,921,791 | Aug. 08, 1933 | C.R. Syme | Means for Adjusting the Plungers of Measuring Instruments | |
| 4,920,723 | May 01, 1990 | D.R. Porter | Hollow Granite Box Beam and Method of Forming | ||
 | 5,596,813 | Jan. 28, 1997 | B.G. Nagy, E.E. Olson | Measuring instrument with diamond coated contacts | |