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| All Patents in class 33/705 | |||||
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| Number | Date | Patentee | Title | Type | |
| 364,913 | Jun. 14, 1887 | A.H. Emery | Micrometer Gage | micrometers | |
| 1,107,187 | Aug. 11, 1914 | F. Spalding | Micrometer Calipers | micrometers | |
| 2,307,323 | Jan. 05, 1943 | D. Laflamme | Measuring Instrument | measurement gauges | |
| 6,243,965 | Jun. 12, 2001 | L. Borgognon, A. Bovey, A. Zanier | Electronic Micrometer | micrometers | |