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| Patents Granted on 1992-03-31 | |||||
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| Number | Date | Patentee | Title | Type | |
| 5,099,722 | Mar. 31, 1992 | R.C. Lee | Cabinet scraper burnishing tool | ||
| 5,099,728 | Mar. 31, 1992 | E.G. Thiem | Swing Arm Brake Lathe | metal lathes | |