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| All Patents of Type: gauge blocks | |||||
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| Number | Date | Patentee | Title | Type | |
| 845,899 | Mar. 05, 1907 | B.J. Roehm | Combination Caliper Gage | gauge blocks | |
| 2,105,054 | Jan. 11, 1938 | M. Posthuma | Gauge for measuring angles | measurement gauges | |
| 2,754,595 | Jul. 17, 1956 | W.S. Lesner | Combined Square and Gauge Block | squares | |