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| All Patents in class 409/175 | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,619,880 | Dec. 02, 1952 | E.E. Hosea | Machine tool | milling machines | |
| 2,823,590 | Feb. 18, 1958 | C.F. Erikson, F.R. Swanson | Machine tool | ||
| 2,985,040 | May 23, 1961 | W.R. Border, Jr. | Variable Cylinder Boring Jig | boring bars | |
| 5,297,907 | Mar. 29, 1994 | A.W. Way, D.S. Strait | Portable Machine Tool | portable milling machines | |