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| Patents for Bernard L. Polkosnik | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,522,400 | Sep. 12, 1950 | B.L. Polkosnik | Doweling jig | drill accessories | |
| 2,717,618 | Sep. 13, 1955 | B.L. Polkosnik | Butt gauge | butt gauges | |
| D201,570 | Jul. 06, 1965 | B.L. Polkosnik | Marking Gage | marking gauges | |