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| All Patents in class 116/299 | |||||
| Number | Date | Patentee | Title | Type | |
| 1,444,565 | Feb. 06, 1923 | J.C. Smith | Gauge | measurement gauges | |
| 2,880,643 | Apr. 07, 1959 | K.C. Allen, E.A. Reussenzehn | Computing scale | ||