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| All Patents in class 408/16 | |||||
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| Number | Date | Patentee | Title | Type | |
| 4,527,449 | Jul. 09, 1985 | W.E. Sydlowski, H.A. Trent | Boring bit and method for manufacture thereof | wood drill bits | |
| 4,842,452 | Jun. 27, 1989 | D.S. Strait | Surfacing Machine | portable metal boring and drilling machines | |
| 5,716,169 | Feb. 10, 1998 | H. Schürfeld | Process and Device for Adjusting Reamers and the Like | reamers | |