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| All Patents in class 248/122.1 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,258,175 | Oct. 07, 1941 | J.O. Coleman | Adjustable Dial Test Indicator Mounting | measurement gauges | |
| 3,581,354 | Jun. 01, 1971 | C.A. Usiskin | Instrument Clamp | dial indicator attachments | |