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| All Patents in class 408/72B | |||||
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| Picture | Number | Date | Patentee | Title | |
| 575,469 | Jan. 19, 1897 | E.F. Fancher | Center Templet | ||
 | 4,589,806 | May 20, 1986 | J.W. Rotta, Jr. | Tap and drill guide | |
 | 5,415,502 | May 16, 1995 | B.A. Dahlin | Drill and tap guide | |