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| All Patents in class 29/898.1 | |||||
| Picture | Number | Date | Patentee | Title | |
| 2,307,282 | Jan. 05, 1943 | G.N. Levesque | Machine Tool | ||
| 3,775,836 | Dec. 04, 1973 | D.J. Warner, R.H. Jackson | Shaft Seal Method of Manufacturing | ||